Colonel Von Strohm wants to hand René over to the Gestapo along with the painting of the fallen Madonna with the big boobies by Van Klomp to get rid of Herr Flick, but René convinces them that it would be a better idea to try to forge the painting, give that to the Gestapo and split the money from the painting after the war. Captain Hans finds out that putting cheese in one's ears improves the sound of madame Edith's singing.
The airmen,wearing German uniforms,are captured by the Maquis,but escape and burn the uniforms,taking clothes off scarecrows instead before disguising themselves as onion sellers. Von Strohm and Geering,now without uniforms,are angry with Rene and he is given two carrier pigeons to send to London for replacement uniforms. He uses the radio transmitter hidden under Madame Fanny's bed instead when Edith kills and cooks the pigeons.
Michelle brings a bottle of nitro-glycerine to the cafe for safe keeping until it is time for her to use it to blow up a German train. However as it is in a gin bottle Edith thinks it really is gin and gives some to Madame Fanny. Rene and the two German officers meet the plane bringing their uniforms but on board there is only a Jewish tailor who takes their measurements. He does,however,take the painting of The Fallen Madonna with the Big Boobies back to London to be copied.
General Von Klinkenhoff of the German High Command is to arrive in Nouvion by train. Von Strohm and Geering are not keen to see him as he will find out about their incompetence and allow themselves to assist the Reistance in blowing up his train. The General survives and various suspects are arrested but ultimately only Rene is identified as a saboteur and is sentenced to be shot. Various people try to help him escape from prison but in vain. However as Gruber prepares to supervise the execution Von Stahm substitutes harmless wooden bullets for the lethal real ones.
Rene's funeral is to be arranged by the village undertaker Monsieur Alphonse. Flick,along with his girl-friend,Private Helga,will be watching on the off-chance that the mourners will include other Resistance members who can then be arrested,but the plan is leaked so that Monsieur LeClerc will pose as the priest and no Resistance members will attend. Rene himself is passed off as his twin brother from Nancy,also called Rene,come to pay his respects. In the absence of a body Michelle hides some anti-tank missiles that she has been given in the coffin but of course it ...
The Resistance capture Von Stahm and Geering, whom they intend to shoot in return for the death of the late cafe owner. The task of shooting them is to be given to Rene in revenge for his brother's slaying. Fortunately he is able to enable all three of them to escape in time to meet the plane bringing the forged painting back from England,which they intend to return to Flick. Unfortunately it is only after the hand-over has been accomplished that they discover that they gave him the genuine original and they have the copy.
Hearing that Flick intends to send the painting back to Berlin next day Von Stahm directs Rene to make the switch that night. A diversion is arranged in the form of a Hitler Youth Dance,in which local girls dressed in Bavarian costumes will perform for the Gestapo officer's delight. Meanwhile Rene and Edith,wearing the German uniforms that arrived on the plane,will take the forgery back to Flick's office. Unfortunately the guard takes the painting from them and sends them away. Now Flick has the original,the London forgery and one he made himself to work a fiddle that...