Psych: Season 4, Episode 1

4 - 1: Extradition: British Columbia

While on vacation in Vancouver, Shawn and Gus are suddenly on the trail of elusive art thief Pierre Despereaux (Cary Elwes). Since Lassiter has been trying to arrest this criminal for years, he and Juliet arrive in Canada as well, and Shawn believes that this thief has pulled off the perfect crime, until he realizes what's really going on.