The exploits of five World War II prisoners in a German POW camp, 'Stalag 13' who, while "under the cover" of being typical prisoners of war, are really secretly doing their utmost to sabotage the German war effort through whatever means necessary. Col. Klink is very proud that no prisoner has ever escaped under his watch, not that they would want to. Suave, cool and smart, Col. Hogan takes advantage of Col. Klink and Sgt. Schultz's bravado and general cluelessness to carry out his missions.
Colonel Hogan needs LeBeau to whip up something special for a German general, but the chef has made plans to escape to France.
When the Gestapo targets Colonel Klink's radio expert, Hogan helps save him before he's silenced for good.
Hogan convinces Klink that he is a great artist so he can smuggle out some maps in the Kommandant's canvases.
Part 1 of 2. When Sir Charles Chitterly parachutes into Stalag 13, Hogan asks Colonel Crittendon to pretend he's Sir Charles --- but Lady Chitterly isn't fooled.
Part 2 of 2. Hogan fears the phony Sir Charles can't trick Hitler. Things get even more complicated when Chitterly escapes from the prisoner's tunnel.
The heroes try to prevent the Gestapo from sending Klink and Schultz to the Russian front.
When Schultz is put in command, his mania for power jeopardizes Hogan's plan to smuggle uranium to London.
Right after he tells a new prisoner about their secret operations, Hogan discovers he's a German spy.
When Klink gives the heroes a tape recorder so they can send messages back home, Hogan has bigger plans for the device.
Hogan's plot to hijack a dynamite truck takes a different tack when the truck makes an unscheduled stop.
Hogan and his men mastermind the ambush of a Gestapo train that's transporting an underground agent to Berlin.
The heroes use Klink's car radio to pass information to an underground agent about a German rocket factory.
To smuggle out an anti-radar device, Hogan passes LeBeau off as a fortune-teller after convincing Klink he's been struck by lightning.
When three Gestapo officers detain Hogan and Carter, the two frantically plan their escape --- until they learn the officers want to defect.
Klink takes Hogan to England to steal an Allied plane, but Hogan has other plans --- to expose some Nazi spies.
The heroes pose a Nazi officers to root out a German spy posing as an American pilot.
Dressed as a general's wife, Newkirk attends a tea party to deliver penicillin to an underground leader.
To get ahold of secret papers, Hogan enlists a beautiful Russian spy to convince Klink he's needed at the Russian front.
When Klink gets assigned to defend a German officer accused of treason, Hogan helps to prove his innocence.
When a rocket lands near camp, the heroes don't know how they'll smuggle it out --- until Russian spy Marya comes on the scene.
General Burkhalter's sister Gertrude thinks her dim-witted fiance should be made Klink's assistant, which interferes with Hogan's plan to aid an American general.
When Gestapo agents accuse Hogan of sabotage, he explains that his exact double, a German traitor, is the real culprit.
Hogan and his men start an avalanche to prevent Panzer tanks from reaching their destination.