After an offer by fertility specialist Naomi Bennett, Addison leaves Seattle Grace Hospital for Los Angeles to work at Oceanside Wellness Group and to start a new life away from her issues and complications at Seattle. Naomi's business partners, Sam Bennett, her ex-husband; psychiatrist Violet Tuner; Cooper Freedman, a pediatrician; and Pete Wilder, an alternative medicine guru, who thinks Addison agreed to work at Oceanside because of a kiss they shared, are all shocked at her arrival. During her first day on the job, Addison's case is one that could make or break her new job at Oceanside.
Cooper hires some "entertainment" for Sam as a kick-off to his new life as a single guy. However, both Naomi and Addison become jealous when Cooper's entertainment, Ginger, asks Pete for medical advice. Meanwhile, the Oceanside staff and Ambrose Hospital Chief of Staff Dr. Charlotte King team up to help find the cause of a baby's bizarre illness.
Addison needs Pete's help to treat a newlywed couple who are having problems consummating their marriage, despite numerous attempts. Violet tries to convince a patient to leave his wife, despite her own issues in letting her ex go. Meanwhile, Cooper looks into why his patients, four sisters, all have the same mysterious illness.
Addison invites her co-workers to her house for a small get-together, but not one of them RSVPs. Meanwhile, the wife of Violet's ex-boyfriend arrives at Oceanside for treatment, and Violet is less than thrilled to see her; Cooper helps his latest patient overcome being lovesick; and Sam guests on a talk show to promote his book.
Addison finds it hard to stop thinking about Pete, despite everyone trying to help her focus elsewhere. Meanwhile, Allan, Violet's ex-boyfriend, comes by the clinic much to Cooper's dismay; and Maya, Naomi and Sam's daughter, arrives at the clinic for advise from Addison without her parents knowing.
Charlotte asks Pete for help in treating her insomnia. Meanwhile, Naomi goes out on her first date since college; Cooper worries that his patient's injuries weren't actually due to an accident; and Addison and Naomi are asked by a patient to keep her fertility a secret from her husband.
Sam gets called out on a dangerous house call. And back at the practice, Addison and Pete decide to take their relationship to the next level, and Violet and Cooper make a 'friends with benefits' pact.
Cooper receives a surprise when returning to online dating. Addison goes on a date with one of Violet's patients. Naomi and Sam are summoned for a house call at a covenant. Dell takes his midwife classmates on a tour of Oceanside Wellness. Also, Addison and Pete join a Safe Surrender program and give aid to a teenage mother.
Oceanside focuses on fertility and starts a dads-to-be class; Sam and Naomi struggle to figure out where their relationship is heading; Addison is conflicted about her status in the dating world; Cooper begins a secret affair with a colleague.
Addison finds out that Naomi has been keeping a secret concerning the practices money troubles. Violet believes that Cooper has a secret of his own he is keeping from her. Cooper must choose whether to reveal a medical secret to a patient.
Addison and Sam form a hostile takeover in order to bring the practice out of bankruptcy, as all of the doctors look for additional clients and new income streams, while Violet's friendship with Cooper is on the brink of extinction and a married couple fight for an unethical fertility treatment at Oceanside Wellness.
Charlotte tries to convince Addison to come to St. Ambrose Hospital while Addison and Kevin become closer. Meanwhile, Sam wonders if he is able to save Oceanside from financial disaster; Pete treats a patient with post-traumatic stress disorder; and Violet is threatened by a patient's son.
Sam and Naomi are put against one another during an office election for the leader of the practice. Meanwhile, Addison treats an Afghan girl who is trying to hide her past and Cooper's personal life spills over into his professional life.
Addison tries to fix the financial troubles at Oceanside Wellness, but ends up doing more harm than good. Meanwhile, Violet's friend asks her to break the law to help her while Maya hopes that Sam and Naomi are getting back together for good.
Addison treats two pregnant women who have something in common, but are both unaware as to what it is: the same husband. Meanwhile, Sam and Naomi take a close look at their relationship; Violent confronts Charlotte; and Dell reveals the woman in his life to his co-workers.
Archer, Allison's brother, pays her a surprise visit which causes trouble for not only her but for Naomi and Sam as well. Meanwhile, Meg makes a return to try and make things work out between herself and Pete, and Violet and Dell become angered when a patient comes in who is accused of a malicious crime.
Addison and Charlotte team up to save the lives of a comatose pregnant woman and her unborn child. Pete's girlfriend Meg clashes with the Oceanside staff. Violet goes to Kevin for advice when it is believed a patient murdered his wife.
When Pacific Wellcare, Charlotte's rival practice, opens, Sam and Pete set out to steal one of their clients. However, Addison's patient heads to Pacific Wellcare for a second opinion. Meanwhile, Dell proposes an in-house adoption program.
Meg return's home and notices that Violet and Pete seem a little to close than when she left; Kevin has questions about where him and Addison are headed; Cooper treats a boy with a mysterious past; and Pacific Wellcare continues to steal business away from Oceanside Wellness.
When Cooper's patient contracts measles, everyone at Oceanside Wellness must be quarantined. Meanwhile, Naomi tries to talk Addison into working with her rival, Wyatt; Violet and Pete contemplate their friends-with-benefits relationship; and Dell fights for custody of his daughter.
With her relationship with Kevin on the rocks, Addison finds herself attracted to Wyatt. Violet looks for a way to have a relationship with both Pete and Sheldon. Meanwhile, Cooper and Charlotte become closer after a family emergency.
Violet discovers she's pregnant, but is unsure which of the men in her life is the father of the child. Addison deals with her guilt for kissing Wyatt. Meanwhile, Charlotte proposes to Cooper.
Addison's brother, Archer, relocates to Los Angeles after landing a job at Pacific Wellcare, which creates problems for her and Naomi. Meanwhile, Cooper tries to talk Violet into telling Pete and Sheldon about her pregnancy.
When Archer has a seizure, Addison and Naomi race to find the cause and a cure before it's too late. This leads Addison to call her ex-husband, Derek, for advise. Meanwhile, Violet tells Sheldon and Pete that she is pregnant and Cooper must decide what to do when a seven year-old patient is abandoned at the clinic.
With Archer recovering from survery, Derek asks Addison to help with his pregnant patient. Meanwhile, when Sam has an asthma attack, Bailey and Naomi team up to find the source of his sudden asthma onset.
As Naomi and Archer grow closer, Addison begins to worry that he will revert to his old bachelor ways. Dell, Addison and Naomi argue over the pros and cons of gender reassignment surgery. Meanwhile, Violet and Sheldon co-lead a couples' therapy group.
Addison begins to fall for a colleage at St. Ambrose, but quickly finds out he's more than she bargained for. Pete and Sheldon try to convince Violet to take a paternity test. Meanwhile, Sam enlists Naomi's help in planning an evening with Sonya after he calls her "Naomi" in bed.
A disturbed pregnant patient has lost her baby, and Violet must convince her that her baby needs surgery. Meanwhile, Cooper must tell a patient he needs part of his jaw removed due to a fast-growing cancer. Dell must cope with his daughter's absence when his ex has to move for a new job Sam and Addison must hold back their feelings for two unattainable people.
Cooper struggles with the mother of a patient after learning she allows the 12-year old to be sexually active. Violet is jealous after Pete begins dating a patient's mom. Meanwhile, Sam is scheduled to testify at a colleagues trial for malpractice; and Addison continues to fight her romantic feelings for Noah.
Addison sends a pregnant woman to St. Ambrose for help from Noah after she experiences heart complications. Meanwhile, Sam begins to rethink his friendship with Naomi; Pete and Lisa's relationship becomes increasingly complex; and Sheldon takes a stand.
As Violet chooses between Pete and Sheldon, she must also deal with a grief-stricken patient. Meanwhile, Dell worries about his daughter when Heather returns to town and Naomi debates moving to Pacific Wellcare.
When Pete discovers Violet clinging to live following a violent attack from a patient, he rushes her to the hospital where Addison and Naomi work together to save her life. Meanwhile, the location of Violet's baby are still unknown.
While Violet recovers from her brutal attack, the emotions from the trauma continue to get the best of her despite the support from Pete and her friends. Meanwhile, Addison and Naomi try to work on their relationship, and Sam and Cooper treat a man who was stabbed by his wife.
Addison is not the only doctor at Oceanside Wellness who is pleased to see Miranda Bailey when she brings a patient to Los Angeles. The consequences of Addison and Noah's affair catches up with her. Sheldon and Pete find out who the father of Violet's baby is.
A homeless teen mother's child gets treated by Sam, Cooper and Addison. While counseling a pregnant rape victim, Violet's feelings about her attack resurfaces. Cooper's financial issues catch up with him.
Two of Naomi's former patients face complications that threaten their unborn children. Meanwhile, Violet is asked to testify against her attacker, but doesn't immediately agree to do so; and Charlotte attempts to join the Oceanside Wellness Group.
Naomi weighs the pros and cons of genetically designing babies. Meanwhile, Violet tries electroshock therapy to try to help one of her patients.
While in Malibu hiking, Addison and Sam rush to the aid of a couple trapped in a car that they happen to stumble upon. Meanwhile, Charlotte, Cooper and Violet help a newlywed who took too much Viagra before his wedding night; and Pete and Sheldon go out together, but end up falling for the same girl.
Addison's father drops by for a surprise visit, much to her dismay. Meanwhile, Cooper is arrested for refusing to work on a case; and Pete tries to keep a terminally ill patient alive so that he can meet his new daughter before he passes.
After performing a complex surgery, Addison is finally able to find something in common with her father. Meanwhile, Naomi and Sam must deal with a family crisis.
After an explosion at Dell's house, Betsey and Heather are sent to the hospital and everyone works to save their lives. Meanwhile, tension between Addison and her father increases when her mother, Bitzzy, shows up and reveals a family secret.
Mark follows Addison to Oceanside hoping she will help him with his pregnant daughter. Meanwhile, Dell and Naomi have problems raising their children in the same house; and Violet and Cooper disagree on the course of treatment for a patient, resulting in a large argument.
Maya makes an announcement that shocks Sam and Naomi, and Naomi's response leaves Sam to pick up the pieces. Meanwhile, Pete's patient begins using a bionic arm.
Addison and Cooper lend advice to a couple who must make a difficult choice as to which daughter to save with their newborn's core blood. Meanwhile, Sam learns that Dink is going to marry Maya, and the gang plans an intervention for Naomi.
Sam has Violet help plan Maya's wedding, as Naomi becomes more distant and refuses to help. Meanwhile, tensions arise between Addison and Sam as they treat a suicidal patient, and Cooper and Pete work together to treat a girl with a mysterious bite mark.
Naomi, Addison and Pete try to save a premature baby. Cooper thinks Charlotte's new boyfriend is abusing pills.
Things get too close for comfort when Addison, Pete and Sam must come together on a complicated case involving a dad-to-be who comes down with tuberculosis and threatens the future of his new family. Meanwhile, with Violet still gone on her Costa Rican escape, Sheldon takes over helping one of her patients, Natasha, to get over her crippling fear of flying, and Naomi finds herself in a bit of a love triangle of her own.
When Addison's patient and the life of the three unborn babies she is carrying as a surrogate hang in the balance, Sam's new girlfriend, Vanessa, and Addison are sharply divided on the course of treatment. Meanwhile Cooper seeks Sheldon's help with a young patient, but their personal quarrels over Charlotte get in the way, and Naomi has a dilemma of her own between William and an unexpectedly charming Dr. Fife.
The hospital must keep a surrogate mother on life support until her fetuses are able to survive; Naomi discovers that Addison and Sam have feelings for each other.
When a famed neurosurgeon and her team visit St. Ambrose, Addison is surprised to see Derek's younger sister on the team; Charlotte and Cooper try to figure out how to work together.
Mark follows Addison to Oceanside Wellness in hope of helping his daughter; Naomi and Dell try to raise their children under the same roof; Cooper and Violet don't agree on how to treat a patient.
After Violet files for joint custody of Lucas, an embittered Pete voraciously fights back by hiring a tough attorney for the trial, forcing their fellow friends and co-workers to choose sides and have their personal lives dragged onto the stand and into the public eye
Addison, Amelia and Fife try to save Maya and her unborn child; Sam makes a grim discovery; Cooper makes a valiant effort with Charlotte; an unexpected death leaves everyone stunned.
Pete and Violet anxiously prepare for their wedding day, but Cooper may have to intervene when emotions and fear of the future run high. Things have taken a surprise turn with Addison and Sam, and Naomi juggles the burden of caring for her daughter and newborn granddaughter and worries about Dink's ability to parent. Despite disagreements and deeply-rooted conflicts, the doctors come together to mourn the loss of their friend, Dell.
Violet and Cooper make amendments to their friendship in order to please their significant others; Pete and Cooper get in an argument involving marijuana use by a patient (guest starring Justine Bateman as Sydney); Addison is conflicted about going public with her new romance, and Sheldon's decision to deny approval for a patient's sex change backfires
The man responsible for endangering Maya's life and killing Dell shows up at Oceanside Wellness with a heart condition, and Sam struggles with his responsibility to help; contrary to Violet's warnings, Pete volunteers at a friend's home medical clinic and ultimately puts a patient's life at risk; and news of Addison's new romance doesn't go over well.
The arrival of Dell's young orphaned daughter, Betsey, stirs up the emotions of everyone in the practice; and Pete and Amelia disagree over a risky surgery to treat a woman who has been experiencing chronic and insufferable pain throughout her pregnancy.
Much to her displeasure, Addison is teamed with a new oncologist, Dr. Rodriguez, to treat a newborn baby with a malignant tumor; when Violet and Sheldon visit a prison in order to interview inmates who are up for parole, Pete is highly uncomfortable as Violet tries to help a parolee; and Addison and Violet suggest Sheldon could be the solution for Amelia's needs.
Addison and Sam's relationship is strained when they disagree over the treatment and safety of a comatose patient who has become pregnant, while Pete and Charlotte are faced with the ethical dilemma of revealing the HIV status of a patient who has been in a serious auto accident. Violet crosses some boundaries with Pete's family as she gets caught up in the fray of Lucas's first Halloween.
After Pete discovers Charlotte in the halls of the hospital bloodied and bruised, he and their fellow doctors come to her aid, but only Addison learns the truth from Charlotte that she was sexually assaulted.
Charlotte chooses to suffer in silence as she tries to deal with the emotional aftermath of the attack, as Addison struggles to keep the events of that night a secret, while Cooper and the doctors of Oceanside Wellness fight their own demons arising from the assault.
Despite how Charlotte is choosing to deal with the aftermath of her sexual assault, her fellow doctors think they know what's best, teaming up to pursue criminal charges against her attacker. Pete gets a surprise visitor, his estranged brother, who has come to ask Pete to help release their sick mother from prison.
When the District Attorney's office delivers bad news to Charlotte and Cooper about her sexual assault case, Cooper is outraged and Charlotte seems numb, as a case involving a pregnant drug addict hits hard with Addison, who wants a child of her own with Sam.
Addison's mother, Bizzy, aggressively demands her daughter do whatever it takes to save her partner from dying - including working with Dr. Rodriguez once again. Meanwhile Amelia and Pete's medical consultation is complicated when a patient's wife and his mistress disagree on the course of treatment, Charlotte and Cooper try to be intimate with each other again, and Violet considers publishing a personally-revealing book she's written.
Addison plans Bizzy and Susan's wedding while trying to keep her distance from the overly flirtatious Dr. Rodriquez. Sam is concerned about the care his longtime patient is receiving, and Sheldon refers Charlotte to his mentor and friend for psychiatric help.
Charlotte's attacker, Lee Henry, arrives at St. Ambrose Hospital, injured by his girlfriend and in need of urgent care, and Sam and Charlotte must decide whether or not to save his life. Meanwhile, Susan's health takes a turn for the worse, and Addison's mother, Bizzy, begs her daughter to do everything in her power to help.
After tragedy strikes the Montgomery family, Addison goes home to Connecticut and Sam and her friends decide to join her. Meanwhile, Sheldon and Violet clash when Sheldon's death row patient confesses to a crime that his wife, one of Violet's patients, believes he didn't commit.
Charlotte and Cooper look to forgive each another after revealing secrets during couples therapy, Violets seeks the forgiveness and approval of her fellow doctors after they learn her novel-in-progress will make all of their personal lives public, Sheldon treats a patient who claims to have multiple personality disorder, and Sam and Naomi team up on a case involving a pregnant teen with Down's Syndrome.
The doctors of Oceanside clash when an expectant mother and her husband, desperate to have children, come to them in order to harvest the eggs of their unborn, ill-fated baby; meanwhile, Amelia tries to help a friend who threatens suicide if her tests for Huntington's Disease are positive, and Fife returns to tell Naomi how he feels about her.
At the launch party for Violet's book, Sheldon falls for the smart, beautiful Dr. Marla Phillips, even though she's the critic who panned Violet's tome; meanwhile, Addison's and Pete's patient is caught in a love triangle with her brother-in-law and sister, for whom she is a surrogate, and Cooper and Sam try to convince a family to make their son's health a priority over his successful wrestling career.
When Pete's brother, Adam, brings their sick mother for a consult, Pete discovers her illness may be his brother's fault. Meanwhile, in the wake of her book's success, Violets walks in on Sheldon just as he's about to take her archenemy on a date, and Cooper treats a young musical prodigy whose brain tumor could prevent him from ever playing the piano again.
Katie threatens to take legal action against Violet for "breach of confidentiality," and although Violet feels that she hasn't done anything wrong, she soon realizes she'll have to defend her actions to more people than just Katie. Meanwhile, Cooper suspects that Charlotte may be hiding some lingering feelings for ex-husband Billy, only to find out that Billy has been hiding some feelings of his own.
The day has arrived for Cooper and Charlotte to marry, but not everyone is in a celebratory mood, leading the couple to second-guess their wedding plans. Meanwhile, the doctors of Oceanside Wellness are torn between the future of their practice and protecting one of their own, as an investigator is sent to question them about Violet's breach of confidentiality case.
A second trip to the ER sparks concern for Betsey's well-being and prompts the doctors to launch an investigation into her new foster family -- risking sending the little girl back into the system. Meanwhile, Naomi makes a life changing decision for her family, and a struggling Amelia slips further away from sobriety.
The doctors of Oceanside Wellness are faced with a tough decision -- to point out all areas of vulnerability within the practice and risk the termination of some of their own, or to dissolve the practice and each go their separate way. Addison has a new admirer in town who offers her a very tempting proposition. Meanwhile, Charlotte is assigned to a case that hits very close to home.
Sam, Cooper, Charlotte and Amelia team up to save the life of their friend Pete after he suffers a heart attack, while Violet, who was in the middle of leaving Pete and LA, is nowhere to be found. Meanwhile, Addison's desire to have a baby leads her to see Jake Reilly, her recent mystery man, in a most surprising place, and Sheldon tries to help Amelia in her battle with alcohol.
The Oceanside Wellness doctors interview potential replacements for Naomi, including Jake Reilly, and no one understands Addison's resistance to hiring him; Cooper breaks the law and crosses his wife, Charlotte, in an effort to get cord blood for a young, sick patient; and Pete directs his post-heart attack frustrations towards Violet.
Addison and Jake work with a patient who wants to have a baby even though she doesn't have a uterus; Amelia, back in AA and seemingly back on track, treats a Parkinson's Disease patient who habitually cheats on her husband; Violet, struggling to be a stay-at-home mom, attends a mommy group and finds it's not for her; and Cooper receives the surprise of his life.
Cooper receives the surprise of his life when a woman from his past arrives at the practice; Addison consults her patient, Jodi, who is eight and half months pregnant and suffering from severe memory loss after a traumatic car accident; and Sheldon and Violet clash when their patient, Jodi's husband, Zach, considers leaving his wife and taking the baby with him.
Addison begins in vitro fertilization treatments with Jake's help, unbeknownst to Sam, Amelia is deeply conflicted when her terminally-ill friend, Michelle, asks her assistance in her suicide, and Sam and Violet contend with a patient who refuses his anti-psychotic medication.
Charlotte's painful memories of a horrible tragedy are triggered as Amelia continues her downward spiral; Addison takes one step closer to motherhood when she finally chooses a sperm donor; Cooper faces a difficult decision when he realizes his patient's parents have been drugging their son in an effort to control his supposed ADHD; and Pete's trust issues prevent him from repairing his fragile relationship with Violet.
Amelia's drug addiction spins further out of control as she plays hooky from work with a new fling, starts writing pill prescriptions for herself, and has a run-in with the cops; Addison and Jake are at odds when they must make the impossible choice between donating their patient's organs or saving the life of her healthy, unborn baby; Violet begins working at Seaside Wellness again, and Cooper, Charlotte and Mason begin to form a family bond, much to Erica's chagrin.
The Seaside Wellness group stages an intervention for a defensive and volatile Amelia, who has resurfaced after disappearing on a 12-day drug binge with her boyfriend, Ryan. During the intervention, Amelia mercilessly attacks her friends one-by-one, and Addison, in particular, has trouble seeing her sister-in-law in her present condition. In the second hour, entitled "The Breaking Point," Amelia makes the hard decision to enter a rehab facility, and finds strength in an 18 year-old girl, as they both go through the painful detox process. Meanwhile, Cooper's strengthening bond with his son is tested by his allegiance to a patient in need, Pete and Violet's marriage reaches a tipping point, and Addison collapses from her rigorous fertility treatments.
Amelia's colleagues stage an intervention for her when she returns from her drug binge, and she reluctantly goes into rehab; Cooper's growing bond with his son is tested by his allegiance to a patient; Pete and Violet's marriage reaches a tipping point; and Addison's rigorous fertility treatments get to her. Music from the Mary J. Blige album "My Life II...The Journey Continues (Act 1)" is featured on the soundtrack.
Cooper struggles with whether or not to punish Mason after he catches him stealing; Pete and Violet find it hard to split time with Lucas now that they're living apart; Addison makes changes in her home life to prepare for a potential new baby; Violet and Jake work with two women and a man involved in a polyamorous triad; meanwhile Amelia returns to the practice and realizes how badly she hurt Sheldon when she was abusing drugs.
Pete, Violet, Sam and Addison adjust to their new, singles lives in different ways. Addison questions how much she wants a baby and confides in Jake, Violet considers an offer to go on a date with a young, hot paramedic, and Sam and Pete have a bachelors' night at a local bar. Meanwhile, Charlotte faces a personal, ethical dilemma when Amelia uncovers a secret about Mason's mom, Erica, and Sheldon refuses to bend to the pressure when an old friend from the police force wants him to rubber stamp a fellow cop suffering from PTSD.
An abused paramedic Violet had met several months earlier shows up again—abused again and this time pregnant as well. But on the plus side for Violet, things are going better for her and Scott. Meanwhile, Addison and Jake meet with potential surrogates; and Cooper, Charlotte and Amelia counsel Erica on what could be the toughest decision of her life.
Sheldon counsels Sam's friend, Rick, an Army veteran suffering from PTSD who harbors a secreted sexual trauma; Erica and Mason are involved in a nonfatal car accident that forces Cooper and Charlotte to further come to grips with their future; Violet and Pete struggle to navigate life after marriage when he finds her kissing Scott; and Addison and Jack attend a medical conference they won't soon forget.
Sam finds his estranged sister, Corinne, in jail, heavily medicated and near-catatonic, and brings her to Sheldon for help; Erica begins secret treatments for her cancer and refuses to let Cooper and Charlotte tell Mason; Cooper, Pete and Addison treat the baby of a drug addict; and things between Violet and Scott continue to heat up in the bedroom.
Cooper and Charlotte take Erica to Seattle Grace to meet with Derek, Lexie and Amelia regarding a very risky surgery; Scott tells Violet that he would like to take their relationship to the next level; and Addison finds herself caught in the middle of Sam and Jake's fight about a patient. Meanwhile, Sheldon warns Sam to be cautious as he deals with the return of his sister, Corinne.
Sam tries to take care of his sister, Corinne, but her mental condition makes that nearly impossible; Sheldon learns that Amelia has life-changing news; the flirtation between Addison and Jake continues, and Cooper rejects Charlotte's suggestion to seek outside help with Erica's care.
Sheldon warns Sam that he may be in over his head when he insists on releasing Corinne from the hospital and caring for her at home; a badly beaten Scott arrives at the ER and is placed under the care of Pete; Amelia is encouraged to make a decision about her unborn child; and Jake's daughter grills him on his love life when he visits her at college. Meanwhile, Erica's health takes a turn for the worse.
As Erica's medical condition rapidly worsens, Cooper and Charlotte do their best to prepare an in-denial Mason; Violet and Pete, both single again, find they still have feelings for each other; Addison encourages Amelia to embrace impending motherhood;, and Sheldon and Jake work with a devastating case in which a woman, jailed for killing her two children, is pregnant with a third.
Pete and Violet enter marriage counseling to help patch up their relationship; Amelia shuts down emotionally and avoids her peers upon hearing some devastating news; Addison adjusts to the new man in her life, and Charlotte and Cooper struggle with Mason when he refuses to speak to them. Meanwhile, Violet becomes suspicious of the sister of one of her patients.
Addison, Pete and the team treat an illegal immigrant facing deportation who self-induces her pregnancy so that her child will be a U.S. citizen; Cooper and Violet work with a young girl who has gender identity disorder - and with her parents -- and Violet wants to continue therapy with Pete before they begin dating again.
When a patient's partner and father are heatedly divided on his health care, Pete makes a decision that impacts everyone, including himself; meanwhile, Jake offers strength and experience to Amelia when he suspects she's being tempted to substance abuse, Sheldon and Violet treat a family concerned about the father's new sexual appetite, and as baby Henry draws Addison and Sam closer, they struggle to define their relationship.
When Amelia goes into labor, the Seaside doctors - even those she pushed away -- come to her side as she faces the hardest decision of her life. Meanwhile, after Pete finds himself in life-changing trouble, he and Violet realize what they mean to one another, and Addison is faced with a choice.