Psych

Shawn and Gus find themselves caught between two rival Chinese Triad families as they search for one of the leader's abducted daughter. Meanwhile, Shawn's father Henry joins the police department in charge of the "consultants" - Shawn and Gus. Juliet also deals with the lingering traumatic effects of her kidnapping by Mr. Yin.

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.

Shawn and Gus show up at a crime scene at a swanky mansion where a young bachelor, Lance, just fell to his death. Lassie doesn't believe it was murder, but Shawn thinks otherwise. He notices that Lance's ankles and arms were not broken, causing him to believe that he didn't try to brace his fall and was therefore dead before his body touched ground.

An expensive sports car is hijacked by a masked person. Lassiter and Juliet get the call. And since Lassiter has been frustrated by his lack of progress breaking up a car theft ring, they decide to take lead on the case. The car thief they were chasing ends up shot dead somewhere along the route of the chase. Now they have a murder and a car theft ring to solve.

After a former police chief is killed, details emerge indicating he might have been involved in criminal activity. Shawn and Gus get a glimpse of their futures as they team up with two retired detectives 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 an eco-project in the Channel Islands.

Shawn, after a night in of drinking and listening to the chick-lit book series 'Internity' on audiotape, stops into a coffee shop with Gus before they are to be at a crime scene. Shawn, worse for wear, tells the barista that he will be getting his free since he will guess the trivia question again as always. However, he is beaten to the punch by Declan Rand, a handsome and charming man. Shawn wonders who he is as he leaves, but soon finds him across the street at their crime scene. Declan, it turns out, is a criminal profiler, brought onto the case by Chief Vick.

Shawn and Gus find themselves in the midst of a Bourne Identity-like hunt and chase after a U.S Government Spy named Nadia seeks their help in finding an agent who's been off the grid for quite some time. The agent she's looking for is Strabinsky - the only person in the world who has successfully erased his identity. Nadia needs to be erased too, as the government is chasing after her, trying to capture her for something she claims she didn't do. Shawn is quick to trust her because she mentions Ewan O'Hara's name, and because she's a sexy government spy.

Shawn and Gus receive an invitation from Desperaux to visit him in British Columbia, but there's a catch: Desperaux is still in prison. But after much convincing, Gus agrees to go with Shawn on the free trip. Fresh off sharing a kiss with Juliet, Shawn is faced with telling her his feelings before she leaves for the Amalfi Coast with her boyfriend Declan, and before he and Gus leave for British Columbia.

While on the haunted house ride at Santa Barbara's Scare Fest, Shawn and Gus witness a murder and are soon led to believe that the person who committed it is the ghost of a man who fell to his death at Scare Fest 15 years ago.

Shawn and Gus receive a mysterious email asking them to come to a Cinnamon Festival in Dual Spires, a town so small it's written in parenthesis on the map. After meeting many of the colorful residents, including Robert and Michelle Barker who run the local diner and Sheriff Johnson, who questions how they heard about the Festival since they deliberately keep it simple in their town, they make their way to the square where the Festival is being held. But just after eighteen-year-old Randy is crowned Cinnamon King, Jack, a weeping teenager on a bike crashes the festivities and whispers upsetting news to the Sheriff. Robert and Michelle fear the worst has come true - their missing niece Paula has been found dead. Jack leads them all to the body, where Doc Gooden suspects she took her usual night swim and hit her head on a rock. Just then, Shawn receives another mysterious email suggesting it was murder.

Shawn and Gus help the SBPD solve a case, but are soon reprimanded for their efforts because they did not follow police procedure. As a result, Chief Vick arranges for them to take a three-week crash course at the Police Academy, but in true Shawn and Gus fashion, they end up resorting to their rogue investigation styles regardless.

After a criminal named Sergei Czarsky has his court case thrown out because of a critical error Shawn made while investigating him, all of SBPD is furious with Shawn. When Internal Affairs makes it a point to hold SBPD accountable for their mistake, everyone's job is in jeopardy. Shawn plays it off like it's no big deal, but Gus and Henry see otherwise. Vick then places Shawn on suspension, and makes the difficult decision to fire Henry. As a result, Henry and Shawn have a huge falling out that subsequently causes Shawn to have a series of "It's A Wonderful Life"-type dream sequences in which Shawn sees what life would have been like for our characters had he never come back to Santa Barbara.

After the zoo's polar bear trainer is murdered unexpectedly, officials are quick to point the finger at the polar bear, but Shawn believes the animal to be innocent, resulting in him becoming an advocate for the bear and embarking on a desperate search for the real murderer.

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