Unity on U-612 has crumbled and Hoffman and Tennstedt’s continued conflict could jeopardise the mission. On land, Simone wrestles with a difficult choice.

A surprise new arrival takes Greenwood’s place, causing a divide. Plus, Carla and Simone grow closer and a resistance fighter arrives at the safe house.

Things look bleak for the crew of U-612, as they desperately try to work out their next move. Simone adjusts to her new position between Carla and Forster.

Hoffmann insists on further training despite the crew’s desire to head to battle. In La Rochelle, Simone pieces together the previous night’s events.

Tennstedt and Hoffmann continue to butt heads aboard U-612, while rebel Carla Monroe plans a mission in La Rochelle.