As René communicates with London on the radio hidden under Madame Fanny's bed Herr Flick listens in and learns of the plan to dig the tunnel into the prison camp. The airmen and Monsieur Alfonse need help in digging so René and his staff join in. Colonel von Strohm and Captain Geering follow René and go through the tunnel, which collapses behind them, trapping them and René in the camp with the airmen and the café staff. General von Klinkerhoffen is about to make his inspection of the prisoners but the Germans and the girls are disguised as British servicemen and fool him.
—don @ minifie-1