An arrogant German general arrives at Stalag 13 and orders Colonel Klink to guard a truckload of ammunition. But when Hogan discovers that the "ammo" is actually a collection of valuable pieces of art stolen from France, he masterminds a little theft of his own.

The French underground is in desperate need of valuable radios, so Hogan decides to utilize Colonel Klink's former girlfriend to ensure the delivery of the equipment.