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.

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 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 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.

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.

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.

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.

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

The duo's latest case, a gag from Lassiter, turns from an alien abduction investigation to a murder case with the discovery of naked body.

Between tanning salons, speed dating and Henry disagreeing with their prime suspects, it's possible Lassiter will solve the case before Shawn and Gus can.

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.

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.

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.

Juliet asks Shawn and Gus for assistance on her undercover assignment. They're only too glad to help, since it involves sorority sisters. Unfortunately, what's supposed to be an easy case turns out to have ties to their past and may endanger Juliet.

Meanwhile, Lassiter locks horns with the oldest rookie the departments has ever trained.

Shawn and Gus go undercover as talent show contestants to investigate a number of failed attempts to kill one of the judges.

The discovery of a washed-up body sparks a debate between Shawn and the police, who both disagree as to how the man died.

While Shawn believes that the man was killed by a Tyrannosaurus Rex, the police believe the killer is a little less... extinct.

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.

Shawn tracks down Lassiter's car with little difficulty after it's stolen. However, Shawn discovers that there's more to the situation than meets the eye and calls Gus back from vacation to help with the investigation.

Gus and Shawn's childhood nemesis, now a horse jockey, asks the duo for help in discovering why his horses never win. But the investigation develops into a murder case after a jockey dies while racing.

Shawn and Gus are put on the case when a food critic is murdered. However, Gus' Uncle Burton is in town, and due to a misunderstanding, Gus must pretend to be the psychic detective to avoid disappointing his family.

Shawn and Gus take on academia as lecturers at a school for the gifted where two students suspect a teacher of murder, they just don't know who's been murdered or the murderer's identity. At the precinct, Juliet lobbies hard for lead position on the next case, and Lassiter hands her a "gimme". The same case Gus and Shawn are working.

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.

Shawn and Gus find themselves trying to outwit a bounty hunter when Juliet asks them to find a suspect who escaped from her custody. The problem is, once they find him, Shawn believes his claims of innocence, meaning they not only have to capture him, but prove he's been set up.

Christmas with the Gusters is ruined when Gus' parents' neighbor is killed, a clue leads Lassiter to look at Mr. Guster more closely. Evidence leads the police into arresting Gus' mother too, and Shawn and Gus vow to get them out of jail.

Shawn is shocked when he learns that Gus is married after Gus' wife unexpectedly shows up. She asks the men to take on a missing-persons case.

A missing persons case from a posh retirement community turns into a family affair when Shawn and Gus must team up with Henry to solve the case.

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.

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, so Shawn and Gus move in to the loft where the Ciao models live.

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.

Shawn and Gus get hired by the son of daredevil Dutch "The Clutch" Jenkins. They have to figure out what's going on, after "accidents" keep happening to The Clutch.

Henry's brother, Jack, claims that he has a map that leads to buried treasure. Shawn and Gus assist Jack in his search for the treasure, but it turns out that Jack has got more going on than meets the eye.

Shawn and Gus investigate the death of a safety inspector aboard an offshore oil rig. The investigation is complicated by the commander of the coast guard, Barbara Dunlap, Chief Vick's sister.

A surveillance tape from the latest robbery in a string of break-ins leads Shawn to believe that women are the culprits. He futher 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.

Shawn and Gus investigate a department store Santa who they suspect is up to no good. Meanwhile, Gus' sister flies in for Christmas.

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.

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

Shawn and Gus join up with a local firehouse to prove a series of arsons are more than they seem.

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

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.

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.

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.

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.

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.

After a cop bar is shot up in an apparent robbery during Officer McNab's birthday celebration, Shawn realizes the shooter was actually targeting Lassiter.

Raj, a young East Indian man whose serious girlfriends have all met with suspicious accidents, is convinced that he is the victim of a curse, but Shawn and Gus aren't buying the supernatural explanation. They are convinced that a mysterious assailant is actually responsible and they're out to catch the culprit.

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.

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.

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.

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

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.

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 serial killer targets Shawn using scenarios from classic Hitchcock films.

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

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

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

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.