When an important Gestapo official wants to defect, Hogan brings him to Stalag 13 --- and convinces Colonel Klink that the fugitive is Adolf Hitler in disguise... who is trying to elude assassins by hiding at the camp!

When a French flier is captured, the Nazis verbally malign the man's fiancee in an attempt to get him to reveal important information. To keep him from cracking under the interrogation, Hogan smuggle the man's girlfriend into the stalag and arranges for the two to be married.

Sergent Schultz falls head over heels for an attractive woman --- but Hogan suspects that she is a Gestapo agent and has Carter shadow the two loverbirds on one of their dates.

Newkirk, Kinchloe and LeBeau must help Hogan fool the Germans with a look-alike German official to thwart the Nazis' planned assassination plot against British Prime Minister Winston Churchill.

An American military captain and his crew hiding out at Stalag 13 face capture when Major Hochstetter and his search party zero in on the POW camp --- and its elaborate tunnel system to freedom is threatened with exposure.

Colonel Klink's sudden bout with the flu jeopardizes Hogan's plan to smuggle an underground agent out of the camp in the trunk of the ailing commandant's automobile.

Corporal Newkirk sneaks into town for a romantic rendezvous with a German girl --- one who professes that she is on the side of the Allies. But when Newkirk sneaks her into the camp and shows her the gang's secret setup, she promptly reports her findings to Major Hochstetter!