The Rat Patrol (1966)

Season 1: Episode 13

Tully and Moffitt transport a liberated French underground general to a rendezvous in a deserted lighthouse. Hitchcock stands lookout, disguised as a German guard. Troy, though, is held captive inside the lighthouse -- betrayed by Mathias. Moffitt tries to reach him but ends up unconscious. In the ensuing fight, Mathias is killed and Troy manages to signal the trawler into the area to take the general to safety.