After a first attempt to sneak four underground leaders out of the German camp fails, Hogan and his men come up with a new plan: Convince the camp commanders that the war is over!

Hogan's scheme to kidnap General Burkhalter and trade him for an underground agent goes awry when Colonel Klink --- not the general --- is the one who gets kidnapped.

When Sergeant Carter constructs an amazingly complicated rabbit trap, a suspicious Colonel Klink comes to believe that the contraption is a secret electronic spying device.

With camp security raised, Hogan and his men are desperate to smuggle some top-secret photos of German fortifications to the allies. The solution? Make liberal use of Carter's remarkable impersonation of Adolf Hitler.

Hogan and his men play a part in the D-Day invasion of France when they are asked to create a diversion that will delay Colonel Klink and other German officials at Stalag 13 from retaliating once the invasion is underway.

Hogan gets Klink to believe he is about to bust a POW escape ring.

Klink takes Hogan to England to steal an Allied plane, but Hogan has other plans --- to expose some Nazi spies.

An assertive General Burkhalter "requisitions" the famous Édouard Manet painting, "The Fife Player," from the Louvre museum in Paris to give to Hermann Goering as a birthday present. Undaunted by the seeming impossible logistics, Hogan and LeBeau decide to steal it back!

When he's captured in German uniform, Carter convinces the Germans that he is one of them.

At Stalag 13, a German prisoner-of-war camp, Colonel Robert Hogan and his fellow cohorts are a subversive group with many hidden talents. However, a spy has been planted amongst the men by the Germans.

When LeBeau, Newkirk and Carter are captured by the Gestapo during a sabotage mission, Hogan must convince the affable Sergeant Schultz to impersonate the stern Colonel Klink and demand their release.

Two German officers have new and differing plans for Stalag 13, both of which threaten Hogan's operations.

In the first of a two-part story, "Tiger," a female underground agent, is arrested while trying to document some secret German bases and is held in Paris for questioning. So, Hogan and LeBeau become stowaways aboard Klink's staff car and head for Paris to free her.

While trying to free the underground agent "Tiger" in Paris, Hogan must seek help from a Parisian fortune teller, and also enlist the aid of a man who is a look-alike for Nazi Police Chief Heinrich Himmler.

Masquerading as German workers, Hogan and the crew have made elaborate and foolproof plans to blow a German cannon factory sky-high, but their plan backfires when Newkirk winds up being drafted into the German army!

Hogan is asked to immobilize the entire German 6th SS division—10,000 men—for two days, while the Allies organize a surprise attack. The task seems impossible, especially in the presence of the two stern Gestapo colonels who are filling in for a vacationing Colonel Klink.

The heroes pose a Nazi officers to root out a German spy posing as an American pilot.

When Klink gets assigned to defend a German officer accused of treason, Hogan helps to prove his innocence.

When two ruthless German officers put the squeeze on Colonel Klink to contribute money to their phony cause "or else," Hogan and the gang must scramble to come up with the cash and deliver it in time to keep Klink out of harm's way as the camp's inept Kommandant.

When an Italian POW camp commander arrives at Stalag 13 to train under Colonel Klink, Hogan and his gang try to convince the new arrival to go to work for the Allies.

All goes well when Hogan's gang steals Klink's code book from his safe, photographs the contents, and returns it to its proper place. But there's a small hitch: Carter forgot to load the camera with film!

When the gang's hidden cache of money (needed to purchase a secret map) goes up in smoke, the men of Stalag 13 must come up with a way to replace the cash, and decide to pull off a bank heist in the nearby town.

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.

Newkirk, Kinchloe and LeBeau must help Hogan thwart the Nazis' planned assassination plot against British Prime Minister Winston Churchill.

LeBeau's weekly visits to an underground contact, one he describes as a "mean little old lady,” are revealed as something more after Hogan and the men discover that the "old lady" is actually a beautiful, young Dutch woman with whom LeBeau has fallen in love.