When the Santa Barbara police department hit a wall on a high profile kidnapping case, they reluctantly hire Shawn Spencer, the town's newest psychic detective, to help solve the crime.
Shawn and Gus investigate the mysterious death of the Spellmaster at the Regional Spelling Bee.
Shawn and Gus crash a high society wedding in order to recover the stolen cherished antique engagement ring before the ceremony ends.
Shawn must communicate with the spirit world in order to recover a dead bank robber's stolen cash and save his widow's life.
Shawn takes an unsuspecting Gus to a crime scene where they find a man who has apparently overdosed on pills. Shawn, skeptical of the proclaimed suicide, requests to read the witnesses, but the only witness to the event was the man's cat. This is good enough for Shawn, who proceeds to haul the cat around and communicate with him psychically. Gus sees no need for their involvement in the case. Like Lassiter, he believes it was just a suicide. However, he grows wary when a second body is found, another supposed suicide. Shawn is determined to find a link between the deaths and prove that these people were murdered.
Shawn and Gus sit in on a rehearsal for the annual Civil War reenactment, currently being led by Lassiter. A missed cue by Sally Reynolds, playing the nurse, causes Lassiter to stop the rehearsal. Despite Lassiter's cessation, the man Sally was supposed to have shot remains in character lying on the ground. Unfortunately, this man, Nelson Poe, appears convincingly dead because he has actually been killed. The general consensus is that his death was simply an accident, but Shawn suspects murder. He puts his photographic skills to use and recreates the entire battlefield, pinpointing the only suspect who could have killed Poe.
Gus informs Shawn about the recent death of a doctor, which Shawn naturally sees as an opportunity to solve another case. Unfortunately, Lassiter is quite insistent that he does not want them at his crime scene. Shawn's consequential plans to take the rest of the day off are ruined when a histrionic man, Robert Dunn, comes to the Psych office for help. He believes that he's being haunted by a homicidal ghost and is certain that one night in his house will be enough to convince Shawn that something is out to get him.
Lassiter has his hands full enough without having to worry about Shawn. He's quite busy with relationships—that means trying to patch things with his "separated" wife and tolerating interactions with partner Juliet.
Juliet goes to Shawn for some help finding a missing teenager, Malone Breyfogle. Because the police aren't able to take the case until he's been missing for forty-eight hours, Shawn and Gus volunteer to investigate. An examination of Malone's room indicates that he's involved in something shady. Furthermore, they suspect that he can be found at TriCon, a comic book and science-fiction convention. This is good news for Gus, who is a comic book enthusiast himself.
Lassiter and Chief Vick are out of the office and driving their way to a seminar together. The initial awkwardness between them pales in comparison to the surprise disruption they receive in the middle of their trip.
When one of Henry's colleagues, Captain Connors, who is suffering from early on-set Alzheimers, knows that he witnessed a crime, but cannot remember it. He heads to the boys of Psych for help, and now Shawn must help Connors piece together the memory and find the killer.
While out on a date, Shawn sees Lassiter at the bar, sitting alone and drinking heavily. He invites Shawn over and, in a booze-induced rant, tells him about the latest case. An astronomer, Bryant Vallery, has died of natural causes, but Lassiter thinks there's something more behind his death. He also reveals to Shawn the self-doubt he's having and fears he won't be able to properly solve the case. The next day, Lassiter remembers nothing of the previous night, but Shawn decides to boost his waning confidence by secretly helping him figure out what really happened to Vallery.
Lassiter gives Shawn and Gus a very special case. When they enter the questioning room, they're surprised to see a naked man sitting before them. The man, Turk, is also kind of surprised to be naked. He woke up in the middle of a field, confused and unclothed. The only thing he seems to remember is seeing aliens. Though Turk might believe he was abducted, Shawn wants to investigate a more logical explanation. When more guys show up in the same predicament as Turk, Shawn manages to find a common link among them. The clue leads him and Gus to a speed-dating service where they, along with Lassiter and Juliet, must go undercover to find the person responsible for robbing these men of their possessions and their dignity.
Shawn's impounded motorcycle brings him and Gus to the courthouse to get it back. When they return to the office emptyhanded, they catch a story about a woman, Sandra Panitch, who is charged with killing the Channel 8 weatherman. However, Shawn remembers seeing Sandra at the courthouse and is convinced that she is not guilty. A brief encounter with her disheveled lawyer, Adam Hornstock, is enough to inspire Shawn to join the case. He and Gus jump on board as legal consultants. Although they have very little experience in law, help arrives covertly from some unexpected people. Shawn and Gus are determined to prove Sandra's innocence, even if the evidence supports the indictment.
With Gus away at a corporate retreat, Shawn finds himself alone and bored. He goes to the police station hoping to get involved with a case. Overhearing a conversation between Chief Vick and an older man, he learns that the man's daughter, a tennis player named Deanna Sirtis, has gone missing. Shawn tells Chief Vick that he can use his psychic powers to locate Deanna while the police continue their search. However, he must first use a well-crafted lie to get Gus out of his important retreat. Though Gus is initially incurious about the case, things get more interesting with the evidence of attempted murder.
A friend of Henry's needs Shawn and Gus' help. His son, Brandon, has been in some trouble lately, and now he is missing. Bill doesn't want to involve the police, and Henry accidentally suggests Shawn's help. After some investigation, Shawn and Gus discover that the likely cause of Brandon's troubles is his involvement in poker. Luckily, Gus is quite the online poker player. He and Shawn devise a plan to lure Brandon into a meeting and find out exactly what kind of trouble he's in.
While Shawn and Gus investigate the goings-on with Brandon, Juliet explores Lassiter's personal life. She wants to plan a surprise birthday party for him, but no one seems to know anything about his interests. She is advised to cease the party-planning efforts, but her determination cannot be curbed.
Twenty years ago, Shawn and Gus witnessed a woman end her life via a leap from the window of the Wispy Sunny Pines mental institution. The ghost of "Scary Sherry" continued to haunt the abandoned facility. Now, twenty years later, another girl has met the same untimely demise, falling from the exact same window. The other sorority sisters are convinced that her ghost is haunting their sorority house, so Juliet calls upon the help of Shawn and Gus. She will need Shawn's psychic abilities to read the house and to figure out how to stop the hauntings.
Lassiter, meanwhile, has been temporarily reassigned. He must take a rookie detective, Goochberg, under his wing. Despite his initial tolerance, her adamant and amateur ways will no doubt try his patience.
While Gus tunes in to a television favorite, a singing competition called American Duos, Shawn would rather tune it out. He is more than happy to have their viewing experience interrupted by a phone call from Juliet, asking them to come to the police station. Much to his dismay, Shawn realizes that he didn't escape the show after all. One of the judges from the program, the crass Nigel St. Nigel, is in need of Shawn's help. He has been the victim of numerous life-threatening attacks and needs protection. While Lassiter interviews all the potential suspects, Shawn and Gus must go undercover—as contestants on American Duos.
Lassiter's current hot streak has left Shawn feeling neglected by the police department. With Lassiter single-handedly solving case after case, there has been little need to bring in outside help from Shawn and Gus. However, when an unknown man washes up on shore with unusual scarring, Lassiter is stumped. Luckily, Shawn has a theory of what caused the injury—a dinosaur. Confident in his theory, Shawn and Gus set out to connect a dinosaur to the man's death.
A counterfeiter has led two federal agents on his case to Santa Barbara. While Lassiter tries to impress Special Agent Ewing, Shawn is startled to discover that the FBI has its own psychic, a woman whom he flirted with earlier. Shawn is even more surprised by the woman's impressive psychic abilities. This motivates Shawn to do everything he can to solve the case on behalf of the SBPD, and, more importantly, to prove that he is the superior psychic.
Lassiter finds that his car has been stolen, but fortunately, Shawn is there to solve the case. He uses his psychic powers to identify the culprit and have him arrested. However, Shawn is not so sure that the case is over. It all seemed too easy, so he decides to investigate further. He'll have to start without Gus, though, who is enjoying a much-needed vacation. Shawn also won't get be getting any assistance from Lassiter or Juliet, who are giving a presentation at the 21st Century Law Enforcement Seminar for police officers.
Shawn and Gus are terrified when they learn that their childhood bully, Jimmy Nickels, is coming to see them. Once he actually shows up, their fears are erased. It turns out that the once-threatening Jimmy is a now a jockey. He has recently been losing his races and wants to hire the guys to help him figure out why that is. They reluctantly accept and go to the race track to talk to the horses. However, the case gets a little more intense when another jockey dies during a race.
Gus' Uncle Burton is in town. This wouldn't ordinarily be a problem, except that Gus' family has mistakenly understood him to be the psychic and Shawn his assistant. To make matters worse, Shawn invites Uncle Burton along to the crime scene so that he can see his nephew in all his psychic glory. Here, they discover a dead restaurant critic, Vance Wagner. Shawn believes that Mr. Wagner has been poisoned, and as they research who might be responsible for the crime, Uncle Burton continues to tag along. Gus is forced to keep up his charade as psychic and learns that Shawn's job isn't as easy as he may have thought.
Shawn and Gus go undercover as teachers of the paranormal at a school for gifted kids to investigate a possible murder. The only problem is, their clients, two students at the high school, don't have any idea about the identities of the murderer or his supposed victim. All they have to go on is a phone call they accidentally overheard a few nights ago while inside the school.
Meanwhile, Juliet's one-year probation period has ended, so she grabs the reigns and leads her own case. Coincidentally, the case that Lassiter gives her is the same one Shawn and Gus are working on.
Interim Chief Vick contacts Shawn and Gus about a very special case she has for them—she wants them to find her a nanny. Though reluctant to take the job, Shawn and Gus find Vick to be quite forceful when her anger is fueled by weeks of sleep deprivation. She explains that since they'll be working privately for her, they are not to take on any other cases. However, when Shawn discovers a string of burglaries taking place in a nice neighborhood, all in the middle of the day, he can't help but get involved.
Lassiter and Juliet lead the investigation to find Dwayne Tancana, a thief-turned-murderer who escaped police custody due to a mistake by Juliet. They soon find out that the victim's husband, angered that Tancana managed to escape, has hired a bounty hunter to find the criminal. Juliet urges Lassiter to bring Shawn and Gus on the case, and the two discover that the bounty hunter is their childhood idol, Byrd Tatums. They're even more excited to find out that the $50,000 bounty on Tancana goes to whomever catches him, so they agree to take the case and compete against Byrd for the money.
Christmas is closing in, but the holiday is shaping up to be anything but merry. While out Christmas caroling, Shawn and Gus discover the dead body of their old neighbor, Mr. Fuller. Though it appears to be suicide, Shawn conjectures murder. The police ultimately agree with Shawn, but all evidence points to Gus' father as the killer. Shawn and Gus set out to prove his innocence.
Since Lassiter's recent separation from his wife has left him alone, Juliet invites him over to meet her family and share in some Scottish Christmas celebrations.
Gus is surprised when a woman named Mira contacts him—a woman whom he drunkenly married a decade ago. Upon meeting her, he and Shawn discover that Mira is getting married to the man she loves. She invites them to the wedding, but the groom never shows. In fact, he has been missing for the past few days. Shawn and Gus decide to take the case and find Mira's missing man. The deeper they dig, the stranger things get.
At the SBPD, Lassiter is shocked to find that Juliet scored higher than him on the detective exam. This generates a competitive spirit between the two.
Shawn and Gus investigate the disappearance of a man from Glorious Pines, an upscale retirement community. The tight security in the facility prohibits them from being able to get inside, so they pass Henry off as their (crazy) grandfather and check him in to a room. As they get closer to solving the case, more residents fall victim to some unexplained occurrences.
The mayor has a special case for Lassiter and Juliet. They must supervise a juvenile delinquent, which Lassiter uses as an opportunity to scare the boy straight.
The star of a Spanish telenovela has been murdered by another actor on the show. Juliet and Lassiter believe it to be an open-and-shut case. The murderer, however, insists that it was an accident and claims that the prop knife was switched with a real knife without his knowledge. Shawn and Gus believe that he was framed and investigate the crime. Gus is especially excited to be working on the set of his favorite soap opera, but it's Shawn who gets a recurring role on the show.
Henry bails on his weekend outing with Shawn, stating that he's too ill to leave the house. Shawn is nowhere near upset until he and Gus catch Henry driving by, clearly not sick at all. Naturally, they follow him and discover he used to be a member of the Monarch Lodge, a clandestine society. They barge inside looking for an explanation and are surprised to find one of the Lodge members lying dead before them. Shawn suspects murder, and in order to conduct an inside investigation, he becomes a member of the society.
It's Gus' birthday, so Shawn takes him to the launch party for Ciao clothing's new fall line. While Gus tries to make a move on his favorite model, one of the owners of Ciao is suddenly electrocuted via the stage's microphone. Shawn is certain that his death was no accident. Unfortunately, Lassiter and Juliet find the witnesses, all models, to be unhelpful, so Shawn and Gus move in to the loft where the Ciao models live. They all believe that Gus has also done work as a model, but they doubt Shawn. Shawn also has to deal with his father's possible new romance with one of Chief Vick's friends.
Lassiter and Juliet get called to a museum to investigate the disappearance of a 3,000-year-old mummy. Lassiter insists it's just a prank that's not worth his time. He's busy working on another case involving the death of philanthropist William Wyles III. However, the assistant curator insists that something weird is going on, something possibly supernatural that requires special help. Shawn is then brought in on the case, and he declares that the mummy was not stolen—it walked away on its own.
Shawn's mom, Madeleine, is in town to do psych evaluations for the SBPD. During her return, Shawn is confused and disturbed by his father's friendly behavior toward her. As if things aren't bad enough, Gus is forced to stop working at the Psych agency when his boss notices that it is interfering with his work at the pharmaceutical company. He demands that Gus quit, lest he be terminated from his real job. However, the company boss has one more case for Shawn and Gus—figure out who's haunting his house and get rid of whatever it is.
It took thirteen years, but Gus has finally finished planning he and Shawn's high school reunion. While Gus tries to keep everything in order, Shawn catches up with an old friend, Abigail. Their chat is interrupted when Shawn supposedly sees a person fall to his or her death outside a nearby window. Though there's no body on the ground below, Shawn is insistent about what he saw. He must quickly solve the crime that no one else believes happened before the murderer has a chance to escape.
Shawn and Gus score tickets to a daredevil show featuring Dutch "The Clutch" Jenkins. When he attempts a motorcycle jump through a ring of fire, Shawn notices his fuel line has been cut. Though Dutch emerges unhurt, Shawn concludes that someone must be trying to kill him. It turns out this isn't the first "accident" that has happened recently. Unbeknown to Dutch, his son hires Shawn and Gus to figure out what's going on. Unbeknown to Shawn and Gus, they must pretend to be stunt testers in order to keep Dutch in the dark about their true intent.
Shawn, Gus, and Henry return home to find an intruder in Henry's house. The man turns out to be Henry's brother, Jack. Jack, known to Shawn as the "fun uncle," is a treasure hunter. He has returned to Santa Barbara in order to search for ancient Spanish treasure and needs the help of Shawn and Gus' detective skills in locating it. However, recovering the treasure won't be easy, as the group has to avoid interference from Jack's previous partners and government officials, all of whom are also seeking the gold.
Thirty years ago, Henry solved his biggest case when he stopped an anti-government radical from blowing up police headquarters. However, due to a problem with the search warrant, the criminal now has been let out of prison, and the case must be reopened. Chief Vick puts Shawn in charge and insists that Henry not be allowed to participate, but that doesn't stop him from forcing his way in. Meanwhile, Lassiter and Juliet trick McNab into taking an undesirable case, leaving them free to take on a much more interesting one.
Chief Vick enlists Shawn and Gus to help investigate a recent death on an offshore oil rig. Although the Coast Guard has deemed it an accident, Vick suspects foul play based on an anonymous tip regarding the rig's lack of safety. However, the location of the oil rig puts it out of Vick's jurisdiction and into the hands of Coast Guard Commander Barbara Dunlap. Barbara is Chief Vick's older sister, and while Lassiter finds himself attracted to her, Shawn and Gus find themselves in the middle of a sibling rivalry between the two sisters.
The surveillance tape from the latest robbery in a string of break-ins leads Shawn to believe that women are the culprits. He further narrows the suspects down to a local roller derby team and suggests that in order to pinpoint the people responsible, Juliet needs to go undercover as a member of their team. Though it's technically her investigation, Shawn can't help getting involved in the case. And with Gus busy studying for an important pharmaceutical rep exam, Shawn uses the opportunity to try getting closer to Juliet.
Gus makes a deposit inside the bank, leaving Shawn to wait in the car. While Gus stands in line, a man pulls out a gun and takes everyone there hostage. Shawn, still in the car and oblivious to the hostage situation, questions Lassiter and Juliet about the cops' sudden arrival. Learning that his best friend is in trouble, Shawn is desperate to help and realizes he needs to get inside the bank to question the gunman. However, the SWAT team soon shows up, and its negotiator will not easily satisfy Shawn's request.
At the request of a little girl, Shawn and Gus get an imprisoned Santa released from jail. They congratulate themselves for saving Christmas but are disheartened to find out that the little girl conned them; Santa is actually her father, a known con artist. Shawn and Gus also overhear the two discuss a possible Christmas Eve heist. They enlist Gus' sister, Joy, to help investigate the secret plans, while she and Shawn keep secret the fling they had ten years ago. Things get especially awkward when Shawn temporarily moves in with the Gusters.
When Shabby the Sea Lion is found dead after being released, Shawn believes the death was murder and sets out to prove foul play was involved.
Lassiter has been charged with murder by the Santa Barbara Police Department, and Shawn and Gus are on the case to prove his innocence.
A series of arson's has Shawn and Gus joining up with a local firehouse to prove they are more than they seem.
The foot of a missing football kicker is discovered, causing Shawn and Gus to go undercover at a professional football training facility.
In order to stop an assassination plot, Shawn and Gus must prove that a pathological liar is telling the truth.
An old friend contacts Shawn and Gus when a camp counselor goes missing at their old sleep-away campgrounds. As they arrive, creepy activity begins and they must find out if the abandoned camp's dark past has reemerged.
Shawn is the target of the famed Yin Yang serial killer, who has eluded capture after disappearing eight years earlier. Now the killer is back and wants to play his twisted games with Shawn.
Shawn and Gus go skiing in Vancouver where they meet an elusive art thief, but discover he's not all he seems.
Shawn and Gus discover a fresh airplane crash site which killed a billionaire, but his dying words sound as if he was murdered.
Vandalism at an Old West tourist attraction is forcing it to shut down. In the hopes of saving it, Lassiter secretly asks Shawn and Gus to investigate.
Gus insists that they help their former teacher, a priest, deal with a girl who has been possessed by the Devil.
A robbery at a police bar ends in gunfire, causing Shawn to believe that someone is deliberately targeting Lassiter.
A man enlists Shawn and Gus' help to lift a curse which places his girlfriends in danger
Gus rejoins his college singing buddies from his old a cappella group after a member of the quartet is found murdered. Together, they are able to decipher an encrypted message which could produce the killer.
A man who believes he may be a werewolf enlists the help of Shawn and Gus.
While working on a seemingly simple case involving an ice cream truck, Shawn stumbles into something larger and more dangerous
Shawn goes up against the Army when he believes that a Private's suicide was actually murder, and begins to think that Juliet's brother is somehow involved in the death.
When Shawn and Gus join Gus’ new girlfriend on a rafting trip, a member of the group goes overboard, but Shawn quickly realizes it was no accident
An ex-boyfriend returns in Juliet's life and Shawn is anything but happy.
Shawn and Gus must recover a deadly pathogen before a thief releases it into the city.
Shawn and Gus are thrilled when they're asked to join an elite security company, but the team to which they are assigned are not quite as thrilled with their unconventional techniques and the affect it has on their latest assignment: preventing the assassination of a billionaire executive.
After Lassiter takes a page out of Shawn's book and claims a shark attack victim was actually murdered, the guys must then scramble to find the fish and prove him right.
A killer targets Shawn using scenarios from classic Hitchcock films.
Shawn and Gus search for the abducted daughter of the leader of a Chinese Triad family.
A body is found drowned in the river. Another body is found later. Shawn and Gus work for their respective "favorite cops" as two separate teams. Soon they find themselves together again.
There are aliens in the land of Shawn and Gus. Their old geeky friend turns out to be a hot jock now that he is grown but he is keeping his own secret.
A wealthy widow's young date is murdered, pitting Shawn and Gus against a dirty rotten scoundrel they are convinced trained the victim to be a con artist.
When a member of a gang of car thieves turns up dead, Shawn and Gus must infiltrate a drag racing ring to find the killer. Shawn soon finds himself enjoying the fast lane too much, which not only endangers the investigation but also their lives
After a former police chief is murdered, details emerge indicating he might have involved himself in criminal activity after his retirement. Shawn and Gus must then team with two of his former colleagues -- and doppelgangers for themselves in thirty years -- to clear the old chief's name and solve his murder
Shawn and Gus help a prison guard locate his escaped inmates while on a ferry boat headed to the Channel Islands.
While on a murder case involving victims on a liver transplant donor list, Shawn is faced with a man whose criminal profiling skills rival that of his own.
Shawn and Gus find themselves in the midst of a Bourne Identity-like hunt and chase after a U.S Government Spy seeks their help in clearing her name for a crime she supposedly didn't commit.
Shawn and Gus visit Despereaux in a Vancouver prison.
While on a haunted house ride, Shawn and Gus witness a murder they believe was committed by a ghost.
When they do not follow police procedure, Shawn and Gus are forced to attend the Police Academy.
When Yin returns to kidnap a woman, Shawn and Gus turn to Yang who is their only chance to solve the case once and for all.
When Yin returns to kidnap a woman, Shawn and Gus turn to Yang who is their only chance to solve the case once and for all.
Shawn stumbles across a dead body at the British consulate's home while working a case to recover a stolen "Star Wars" collector's item. In order to get the police on the case, Shawn claims he had a vision of the murder and puts his reputation as a psychic on the line.
Shawn, Gus, Lassiter, and Woody the coroner wake up in the Psych Office having no recollection of what happened the night before.
Shawn and Gus show up in costume to help Juliet solve a case.
Shawn and Gus try to identify the masked vigilante the Mantis, who is trying to take down a drug ring that the SBPD is also targeting.
After the hitting coach of Santa Barbara's minor league baseball team mysteriously drops dead, the team's manager hires Psych to investigate by having Shawn go undercover as the new hitting instructor.
Shawn and Gus are going undercover in a mental ward for a case they're committed to solve. But will Shawn fly over the cuckoo's nest?
Juliet gets a visit from her estranged father, but when the opportunity to pull off a dream con is presented to him, his decision to stay on the right side of the law becomes more complicated.
Shawn and Gus hide a witness at a remote commune populated by eccentric intellectuals while they investigate a murder that the witness claims occurred in broad daylight.
Shawn and Juliet's romantic getaway vacation from casework and the SBPD is interrupted when their hotel room is robbed and a dead body surfaces at a nearby winery.
Shawn and Gus team up with Despereaux to locate a mythical dagger rumored to be the key to unlocking a dead billionaire's treasure.
Lassiter hires Shawn and Gus to get to the bottom of strange occurrences at his new condo.
Shawn and Gus go undercover to investigate an attack on a reality-TV contestant who appeared on a dating show in which men compete for the affections of a woman they've crossed paths with but never officially met.
When the founder of "Right Now", Santa Barbara's oldest at-risk youth program, is shot and almost killed, Shawn, Gus and a few members of Gus's a capella group from college investigate to find the culprit.
An autopsy mistake threatens Woody's job, prompting Shawn and Gus to look for the cadaver's real cause of death in order to help their friend.
A wrongly convicted chef hires Shawn and Gus to help find the real culprit responsible for the robbery for which he was imprisoned.
Shawn, Gus and Henry reopen a murder investigation when the victim's body finally surfaces after 20 years. The case leads them to old suspects, including a millionaire's son, who was dating the woman when she disappeared