Troy and Hitchcock capture Col Beckmann, an infamous Nazi POW camp commander. Beckmann denies that he is the man. In a fight Troy is knocked out and Hitch is wounded. Using Troy's gun, Beckmann kills the other German taken at the same time he was and then he exchanges dog tags with him--the places the gun in Troy's hand. Troy is thus accused of the murder. Moffitt and Tully do not arrive until after the deed is done. To prove to a court-martial board that Beckmann is Beckmann, the other Patrolers must break into a German HQ--at considerable risk to their own lives.
