Meredith's life is chaos both at work and at home. Callie and Arizona come to a decision about the surrogacy. Amelia learns a secret.
Maggie keeps finding herself in awkward situations, after trying to make a good impression. Richard tries to keep his secret hidden.
Jo becomes jealous when Alex and Meredith become close friends. Maggie and Richard continue to open up to each other. Callie is pressured by Owen to use his robotic-limb lab to assist veterans.
Meredith watches some old videos and readers her mother's journals. She learns some secrets from Ellis Grey's past. Maggie makes an unexpected announcement. Alex takes on more responsibilities. Callie focuses on the veterans' project.
Arizona and Callie examine their marital problems; Richard turns to Bailey for advice.
Source: ABC Network
A patient who may have served in the military is developing a bond with Owen. April's mother connects with Jackson. Bailey begins to reconsider her health issues.
Amelia's past begins to emerge and it is causing problems for her at the hospital. Arizona has to make an executive decision in Dr. Herman's absence.
A bigger argument arises between Meredith and Derek after a disagreement about a patient. When a patient is pushed to far, Callie feels responsible.
Jackson and April must deal with some heartbreaking news, Derek gets ready to move to Washington, D.C., and Amelia and Arizona plan their move to talk to Dr. Herman about her condition.
April tries to stay positive in the wake of her baby's diagnosis and goes through more testing. Callie and Owen become one another's coach when it comes to getting back in to the dating scene. Maggie, Bailey and Meredith work with a 3D printer to map out a tumor.
After several discussions with Dr. Herman, April and Jackson must face their situation head on and make a difficult decision regarding their unborn child. Catherine arrives in Seattle and bumps into Richard at the hospital. Meanwhile, Meredith tries to find someone to take care of the kids so she can visit Derek for the weekend, and Amelia shows Stephanie some tough love when they work together on a case.
Maggie gets upset when Meredith dodges her questions about DC; Bailey and Ben become concerned about Ben’s brother after he is admitted to the hospital, and Dr. Herman starts to warm up to Arizona. Meanwhile, Richard feels manipulated by Catherine.
The hospital doctors become fascinated with Dr. Herman’s case when Amelia gives a lecture detailing the intricacies of the surgery. Arizona and Herman continue to bond over the amount of cases they are trying to complete before the big surgery. Meanwhile, Bailey brings them a case of a pregnant woman who is close to her heart.
In this Amelia-centric episode, Amelia engages in the surgery of a lifetime as a crowd of doctors look on from the gallery. With Stephanie by her side, she begins operating on Dr. Herman, but quickly realizes it's far more difficult than she anticipated. Meanwhile, Bailey becomes skeptical when Arizona takes on one of Herman’s cases.
An earthquake shakes the ground at Grey Sloan Memorial Hospital, trapping Maggie in an elevator and threatening Meredith’s long streak of successful surgeries. Meanwhile, Owen gives medical advice to a child over the phone and Ben confides in Jackson.
A patient’s condition sparks a conversation between Richard and Maggie about Alzheimer’s disease; April and Jackson struggle to return to their normal lives and Arizona is faced with the reality that Callie is moving on. Meanwhile, Meredith reveals her biggest fears about Derek.
Meredith, rattled by the latest events, tries to figure out what to do about Derek. Meanwhile, Owen is shocked when his mother is admitted to the hospital.
A school field trip to the hospital takes a dramatic turn when the kids witness two injured cops enter the emergency room. Meanwhile, Stephanie sets her eyes on one of the chaperones, Callie operates on the leg of the police captain and Amelia must face her feelings for Owen.
A man shows up at the hospital whose wife took revenge on him after finding out that he had been cheating on her.
A small plane crash sees multiple casualties and brings back some upsetting memories.
Derek witnesses a horrible car accident and springs into action to save lives.