Lassiter and Juliet are at the scene of a possible suicide with Gus, Shawn, and Abigail. It appears the victim hung himself, but Shawn sees signs of murder and discovers dog tags stuffed down the dead man's throat. This is not just a murder now, it's a military crime, which poses jurisdictional problems. But Juliet says she knows someone who might be able to help with that, and she calls her brother Ewan, an ex-military man who is now hired out by the government for covert missions. He is in the middle of finishing up a job, but he is able to tell Juliet that swallowing dog tags is a sign of shame. He then tells her he's near Santa Barbara and is coming in for a visit.
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Complete story — includes the ending
Shawn deduces that a U.S. Army Private who was found hanged was the victim of foul play, and Juliet calls in her brother Ewan ( John Cena ), a former soldier who has DOD Security Clearance to help them get on the Army base. Unfortunately, Shawn comes into conflict with Juliet over his hunch that Ewan is somehow more deeply involved with the murder. As the case proceeds, Abigail ( Rachael Leigh Cook ) has some unwelcome news for Shawn.