In a battle, Sergeant Chesterfield and Corporal Blutch are taken prisoner by the Southerners and interned in Robertsonville's infamous prison. They are immediately caught in flu by a sadistic, physically disadvantageous guard nicknamed Cancerlat who seeks by all means to avenge himself of the humiliations inflicted on him by our two heroes. Chesterfield and Blutch try several times to escape and it is only in the fifth attempt, having usurped the confederate uniform, that they will manage to make themselves beautiful. Comble de l'ironie, they will be captured by the Nordics and imprisoned again...