Shawn and Gus help Detective Lassiter enlist the help of Henry and Woody to solve the murder of a real estate executive. Meanwhile, Shawn struggles with a life decision.

After eluding capture and disappearing eight years ago, the famed Yin Yang serial killer is back, and he's set his sights on Shawn.

A night of partying which no one remembers that turned deadly sets Shawn, Gus, Woody and Lassiter on the trail of their deeds and a way to clear their names of suspected murder. Unfortunately, they may have to depend on Shawn's "psychic" memories of the night's events.

A serial killer targets Shawn using scenarios from classic Hitchcock films.

The Yin/Yang trilogy comes to a thrilling close as Shawn and Gus race to save a woman kidnapped by Yin. Only this time, they are forced to use Yang's knowledge of Yin to solve the case by allowing her to accompany them on the investigation.

After Gus accidentally tampers with the crime where his boss was killed, Shawn helps him find the real murderer before Gus is arrested.

A body relating to a 20-year-old case is finally found, and Shawn, Gus, and Henry revisit all the old suspects in order to solve the case

The gang spends the weekend at a casino resort for a wedding and crosses paths with a local crime boss whose presence jeopardizes the impending nuptials.

The star of a Spanish telenovela has been murdered by another actor on the show. The murderer 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.

While investigating a possible crime, Shawn stumbles upon one of a pair of criminals, gets shot, and is dumped in the trunk of a car.

The episode kicks off with Shawn and Gus receiving a mysterious e-mail inviting them to the annual Cinnamon Festival in Dual Spires, a quirky Northern California town nearly invisible on the map. When they arrive the pair quickly find themselves embroiled in the mysterious death of local high school student Paula Merral. As Shawn and Gus unravel the many secrets of the town, they meet several local residents including town doctor/lawyer/veterinarian Donna Gooden, Sheriff Andrew Jackson, proprietors of the local diner Robert and Michelle Barker, the mysterious Woman with Wood and enigmatic bookish beauty Maudette Hornsby. The pool of suspects proves to be deeper than suspected as Shawn and Gus must work to figure out who killed Paula Merral.

Shawn and Gus get themselves hired onto the case when an unstable lawyer claims his assistant was abducted by aliens.

Shawn and Gus attend their high school reunion. Shawn sees a body fly past a window, but on further inspection the body has vanished. When Gus assumes the worst, and Lassiter refuses to help, Shawn seeks assistance from Juliet.

Shawn and Gus go undercover at a professional football training camp when the foot of the team's missing kicker is discovered.

Shawn and Gus return to Vancouver to visit their old nemesis Despereaux in prison at the felon's request, who then uses them to escape and pull one last job before he is extradited to the United States. Only while he is out, he is framed for the murder of a Crown Attorney and now asks the guys for help clearing his name of this most recent – and frankly unseemly – charge.

When they solve a case without following proper protocols, Shawn and Gus are ordered by the Chief to take a crash course at the police academy in order to learn the correct way to handle cases, but the two resort back to their old ways.

After a billionaire murderer pleas insanity at his trial, Shawn and Gus go undercover at a mental hospital in order to prove that the man is, in fact, sane. While at the hospital, Shawn and Gus receive some hostility from one of the nurses.

Shawn and Gus spot an art thief whom Lassiter has been trying to arrest for years. So, although they are on a skiing vacation in Canada, they appeal to the local constabulary with mixed results: someone gets axed, another finds himself interrogated and Pierre Despereaux may get away scot-free, once again.

Shawn and Juliet's romantic getaway vacation to a spa gets interrupted by robberies and a dead body at a nearby winery.

When a woman is found dead with a bottle of pills that are lab trial samples, Lassiter and Gus, who are taking the same tap class, team up to dance their way to catching a murderer

When a spy is framed for a crime she didn't commit, she decides to use Shawn and Gus to prove her innocence.

Shawn and Gus must prove Lassiter's innocence when he's on the hook for a murder inside of the Santa Barbara Police Department.

A local weatherman is found dead the morning after a tryst and his lover is charged with his murder despite her claims of innocence. Shawn is intrigued and becomes a defense consultant in order to gain access to the case.

Shawn and Gus must recover a deadly pathogen before a thief releases it into the city.

Lassiter hires Shawn and Gus to get to the bottom of strange occurrences at his new condo.

Shawn and Gus team up with Despereaux to locate a mythical dagger rumored to be the key to unlocking a dead billionaire's treasure.

Shawn and Gus investigate the death of Leonald Callahan, aka Diddle, a computer cryptologist who was the baritone in Gus’s old college a capella group.

After Henry takes a bullet to the chest and is rushed to the hospital, a spiteful Shawn seeks revenge on the shooter and everyone else involved in the scandal.

Shawn and Gus are hired by a childhood friend to find a missing camp counselor who disappeared near their old sleep-away campgrounds. Upon their arrival, spooky activity abounds and they must uncover if the dark past of the abandoned camp has come back to life.

Gus is taken hostage at the Santa Barbara Savings and Loan Bank while making a deposit for Shawn. 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.

A body is discovered, and appears to have been killed by a vampire. Meanwhile, Lassiter becomes romantically involved with a woman whom Shawn suspects is the murderer.

An eccentric police consultant is brought into the SBPD to interview Shawn, Gus, Lassiter and Juliet about their seemingly poor police work on a tough case.

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, iit walked away on its own.

The FBI employs their own psychic in a search for a counterfeiter, causing the department to work together in an effort to prove that Shawn is the better psychic.

When the daughter of a Chinese Triad family disappears, Shawn and Gus take on the case.

Shawn and Gus work with two retired police officers to solve the murder of a police chief.

Gus' nightmares start to feel like reality when he and Shawn work to solve an unlikely case for the SBPD.

Shawn and Gus land their first non-SBPD case when a widow hires them to find some cash that her husband stole from a bank. Shawn is asked to talk to a spirit and help the widow of the thief.

Shawn reluctantly settles for a private client who claims a ghost has it in for him after Lassiter kicks Gus and him off the much more interesting case of a murdered psychologist. The two investigations seem to be running parallel and Shawn may still end up solving the police's case.

This musical extravaganza follows Shawn and Gus' search for an escaped playwright who was declared criminally insane following a suspicious fire. Complicating matters, a person who may have important evidence is an enemy from Shawn's past.

When what begins as a little competitive sabotage in a regional spelling bee quickly escalates to murder. Shawn and Gus must investigate the mysterious death of the "Spellmaster" at the regional Spelling Bee.

Shawn and Gus attend a Civil War reenactment rehearsal for the sheer pleasure of watching Lassiter have a nervous breakdown as he runs it. When a scripted death turns real they end up donning uniforms themselves in order to find the murderer and perhaps prevent another.

Gus is ecstatic when it turns out the only real clue in his and Shawn's missing-person case is TriCon, the comic book and science fiction convention currently running in Santa Barbara. As bodies start turning up, they must balance their newly-scammed and increasingly onerous duties as George Takei's assistants with finding the killer and saving the teenager.

Shawn and Gus become wedding crashers at a posh ceremony in order to retrieve a stolen antique engagement ring inexplicably taken from an inpenetrable vault under surveillance. The theft turns to murder when things start to come unraveled.

A star studded cast of Psych ALL STARS joins our crew as they dive back into 2006 and re-tell the story of Sandra Panitch, a woman wrongfully accused of the murder of local weatherman Jackson Hale.

In 2003, Juliet made a pact with her boyfriend Scott Seaver to meet up in seven years. After he fails to show up, Shawn finds him, and by extension endangers his life since he was a key witness against mobster JT Waring, who was convicted for the murder of a US Marshall. When Waring denies killing the Marshall, Shawn must prove him right in order to protect Scott.

When the hitting coach of the Santa Barbara Seabirds suddenly dies, the team's manager hires Shawn and Gus to go undercover as the new coach and mascot in order to investigate.

Shawn claims a psychic connection with a cat so he can continue his investigation into a what he believes is a murder, but that the police have labeled a suicide, and the link he finds to a hotline may involve one of SBPD's own officers.

Shawn and Gus are bummed to find out the owner of their favorite food truck has been murdered. The two of them go undercover to learn the food truck ropes and find out who the killer is. While working on the case, Marlowe visits them to cure a pregnancy craving and goes into labor at the most inconvenient time.

On the 100th episode of Psych... Shawn and Gus attend a party hosted by an aging rockstar named Billy Lipps, a man the SBPD arrested years ago for a murder he doesn't remember committing.

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.

Lonely and bored, Shawn convinces Juliet to give him a shot with a case involving a missing tennis star, but first he has to spring an unwilling Gus from a corporate retreat.

Shawn and Gus attempt to protect Stewart Grumbley from himself because the poor man believes he may be a sheep-killing werewolf who may soon enough begin killing humans.

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.

Shawn and Gus help a prison guard locate his escaped inmates while on a ferry boat headed to the Channel Islands.

Gus gets a girlfriend, and Juliet goes undercover on an online dating site to catch a killer while Shawn tries to holster his jealousy!

When Shawn Spencer is arrested for calling in an accurate tip to the police because only the perpetrator would know the details, his only way out is pretending to be a psychic. It turns out Santa Barbara PD isn't done with him. They ask him to consult on a kidnapping case, and a business is born.

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.

Shawn and Gus are recruited into a think tank to help prevent the murder of a business tycoon, but once the group has disbanded, they realize that one of the members plans to use the assassination ideas to kill the client instead of save him.

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.

Shawn and Gus want to be put on Lassiter's burglary case, but a sleep-deprived Chief Vick orders them to find her a nanny instead. Unfortunately, at least from Lassiter's view, the two teams keep crossing paths, and Shawn sees an opportunity to horn in on the more interesting case.

When a college girl at a Catholic university commits suicide, Gus and Shawn are brought in because one of the professors at the school believes the girl was demon-possessed.

Lassiter reluctantly asks Shawn and Gus for help when his surrogate father, sheriff of Sonora, thinks a ghost is wreaking havoc in his town. And even though this Wild West re-creation town is bigger on show than facts, it turns out a real crime is being planned and the murder of the Sheriff's business rival is only the beginning.

A wrongly convicted Southern chef hires Shawn and Gus to find the real thief after the Innocence Project frees him from prison.

When Lassiter doubts his own crime-solving ability, Shawn tries to boost his confidence by helping him solve an astronomer's mysterious death.

Henry's friend refuses to report his son, Brandon, missing after the son steals 30,000 dollars. Shawn agrees to help locate the son, and finds out that Brandon has been involved in some underground poker. Meanwhile, O'hara tries to surprise Lassiter on his birthday.

Henry's old captain believes he's solved a murder, but his Alzheimer's has caused him to forget the most important details: the crime, and who committed it. Henry calls in Shawn and Gus who find themselves investigating a murder that happened decades ago and only the faulty memory of the retired officer gives them any hope of closing the case.

Shawn and Gus must prove a pathological liar is telling the truth in order to stop an assassination plot.

Due to an unlawful entry into a criminals property, Shawn gets suspended from his consultant postition and gets Henry fired from his position at the SBPD at the same time. Shawn has a series of Scrooge type dreams where Tony Cox is his 'spirit guide'.

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.

A billionaire hedge fund manager asks Shawn and Gus to find his murderer – a last request Shawn can't resist. So he and Gus step into a world of privilege that's rivaled only by the depths of betrayal it contains.

When Shabby the sea lion is found dead after being released into the wild, Shawn sets out to prove it was murder and stumbles onto a bigger mystery.