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

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.

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.

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 join a pair of college students in the woods who are filming a documentary on Bigfoot.

Shawn solves a case involving a mysterious Swedish woman and imagines how the same case would have been solved had he done one thing differently.

Shawn attempts to bond with Juliet's stepfather Lloyd, a seemingly harmless accountant.

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.

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.

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

Shawn bonds with Woody, and Juliet befriends a girl who Shawn believes to be a killer.

After the Mayor dies in what appears to be a surfing accident, Shawn investigates and ends up running for mayor himself.

After Shawn and Gus' favorite radio DJ is murdered, they go undercover as on-air personalities to find his killer.

After Gus is tasked with taking care of his girlfriend's son Maximus for the day, he jeopardizes their relationship when an innocent trip to the circus turns deadly.

After a woman dies from what appears to be a plastic surgery mishap, Shawn and Gus believe the killer is her doctor, a woman who happens to be an old flame of Henry's.