Psych: Season 5, Episode 7

5 - 7: Ferry Tale

As they are on a ferry on route to the Channel Islands for an environmental cleanup, Shawn and Gus must help a prison guard (Chi McBride) round up four inmates (including Kevin Alejandro) who escaped his custody, which leads to a stand-off with the police, and Shawn discovers that the escape attempt was not simply to avoid prison time, but for a deeper purpose