 Hogan and his men smuggle a woman into the camp. Her name is Greta and she is a member of the Hammelburg Underground. She informs Hogan that his sabotage efforts in the area have the Gestapo whipped into a frenzy and that it is jeopardizing their efforts to smuggle out escaped prisoners. While this is going on a Wermacht General wants to use Stalag 13 as a rest camp for Wermacht officers at the same time a Gestapo Colonel has designs on the camp as an interrogation facility for Hammelburg citizens. Hogan and his men play the two officers against each other while helping Greta with her problems.