 Colonel von Strohm wants the two paintings and the cuckoo clock that are hidden in a statue at the château. He tells René and the staff of the café to pretend to be the Excelsior Quartet who are scheduled to play at the château and at the right moment steal the items out of the statue. The resistance also wants them to steal something, namely the Enigma machine the Germans recently acquired. Mimi, hidden in the double bass case, will take care of this. Herr Flick and Von Smallhausen are also going to the château disguised as serving maids because Herr Flick thinks some of the guests might be involved in the plot to blow up Hitler.