Shawn and Gus find themselves caught between two rival Chinese Triad families as they search for one of the leader's abducted daughter.

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.

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.

Shawn and Gus infiltrate a ring of street racing car thieves to catch a killer.

Two former cops come out of retirement to help Shawn and Gus solve the murder of a former police chief.

Shawn and Gus help a prison guard locate his escaped inmates while on a ferryboat headed to the Channel Islands. Guest starring Chi McBride.

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. Guest starring Nestor Carbonell, Curt Smith ("Tears For Fears").

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. Guest starring Franke Potente, Jon Fries, Nestor Carbonell.

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. Guest starring Cary...

While on the haunted house ride at Santa Barbara's Scare Fest, Shawn and Gus witness a murder and are soon led to believe the person who committed it is the ghost of a man who fell to his death at Scare Fest 13 years ago. Nora Dunn and Jerry Shea guest star.

Shawn and Gus receive a mysterious email inviting them to the Cinnamon Festival in Dual Spires, a quirky small town nearly invisible on a map. They arrive to find themselves embroiled in the mystery of the drowning death of a teenage girl -- who was declared dead under similar circumstances seven years ago in Santa Barbara. Sherilynn Fenn, Sheryl Lee, Dana Ashbrook, Robyn Lively, Lenny Von...

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 3 week crash course at the Police Academy, but in true Shawn and Gus fashion, they end up resorting back to their rogue investigation styles regardless.

Shawn's antics cause evidence to be thrown out in the high profile prosecution of a known crime lord named Czarsky, resulting in the dismissal of the entire case and the firings of not only the Psych agency but also of Henry as their liaison. After Henry wonders to Shawn what life would have been like in Santa Barbara if he had never returned, Shawn travels through a series of dreams which...

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 Shawn 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 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. Ally Sheedy, Mena Suvari and Cybill Shepherd guest star.