Plot summary
A prominent lawyer ( Charles Martin Smith ) claims that one of his co-workers ( Adam Reid ) was abducted by aliens, and Shawn and Gus waste no time jumping on the case, turning to an old friend ( Freddie Prinze, Jr. ) for help since he happens to believe in aliens. Unfortunately, their credibility takes a major blow, and despite wanting it to be an alien abduction, Shawn winds up being the sane one in the investigation.
Credits
Adapted from Wikipedia contributors, Psych season 5. HTML formatting and reference markers removed.