Monsieur Alphonse is being interrogated by the Gestapo about the forged money. Colonel von Strohm and Lieutenant Gruber are afraid that they'll be implicated in the theft of the money, so they plan to have Monsieur Alphonse poisoned before he talks. He has a heart attack and is sent to the hospital. René pretends to have food poisoning so that he can get into the hospital as part of a plan to rescue Monsieur Alphonse. (thetvdb.com)