Desperate Doings in the Graveyard

The latest escape plan for the British airmen involves them wading along the canal underneath a tin bath. Herr Flick and Von Smallhausen pose as escaped British airmen, hoping to be picked up by the Resistance.
The Resistance have built a communication post in René's 'grave', in an effort to get around German jamming of their radio signals. René, Edith and Monsieur Alphonse try it out. René gets caught on the aerial and is hoisted above his 'grave'. Lieutenant Gruber sees him and thinks it's the ghost of René's 'twin brother'.