Moffitt is about to be executed for "espionage against the Third Reich" when suddenly the Patrol comes to his rescue. A commandeered German truck unsuccessfully attempts to scoop up Moffitt, but manages to take a Nazi captain in his place--for exchange. Negotiations for a prisoner exchange are fruitful, but Troy doubts that the Germans will obey their own rules. Indeed, the Nazi's Colonel Voss wants to see the Patrol wiped out and uses the exchange as a trap. The captured captain tries to escape the Patrol and gets himself killed. Now Troy has no one to exchange for a seriously wounded Moffitt and must attempt to pass himself off as a German.

Captain Dietrich monitors a broadcast sent to the Patrol from HQ and then intercepts them on their way to meet and escort a supply convoy. With the odds decidedly against the Rats, Troy takes refuge in an oasis. A child, playing nearby, runs away terrified of the noise and falls down an old well. The Allies and the Nazis agree to put the war on hold and work together to get the child (who is still alive) out. A second German unit appears and shoots Tully. In the end, they are able to rescue the child and, in the confusion, the Patrol escapes.

The Patrol attempts to destroy a small village that currently has a train in it that the Germans are loading with ammunition. However, there is a small group of Arabs (including women and children) being used to load the ammunition. One of the women stumbles upon Troy and offers to help by warning her people. But as Troy attempts to plant the explosives, Dietrich catches on to the plan and gives alarm. Troy ends up shot and captured. It is now up to the rest of the Patrol to cause enough diversion to get him free. The woman continues to plead with Dietrich to give Troy medical attention. As Dietrich is questioning Troy, though, Troy breaks free, shoots the German and is able—with the Arab woman's father's help—to get the explosives planted. The train goes up; the man is killed.

The young mute son of British General Simms is kidnapped in a commando raid by Dietrich and taken to Rhodes. The patrol must rescue the boy from the island's garrison with only the help of one Greek resistance fighter.

Dietrich traps the Rat Patrol in a cellar. In the cellar are a pregnant woman who has a valuable map, and a resistance fighter who has a personal vendetta with the woman.

A British general is rescued in the desert. He insists upon leading the Rat Patrol on a mission to disrupt a German oil pipeline, despite his deteriorated condition.

A village's typhus serum is confiscated by the S.S. in order to exchange it for capturing the Rat Patrol. Dietrich questions their methods.