Sezon 1
France, 1942: In the submarine port of La Rochelle, the 40-man crew of the U-612 prepares for its maiden voyage. The young men face an unknown mission in the increasingly merciless Battle of the Atlantic during the Second World War. As the new Kaleun, the less experienced Klaus Hoffmann (Rick Okon) is in command - to the annoyance of the older first watch officer Karl Tennstedt (August Wittgenstein). Over the course of the mission, the skills, loyalty and camaraderie of the entire team are put to the test. At the same time, Simone Strasser (Vicky Krieps) arrives at the base to work as a translator for Gestapo boss Hagen Forster (Tom Wlaschiha). Simone's brother Frank (Leonard Scheicher) is also stationed in La Rochelle. Shortly after their first reunion, Frank asks his sister for a favor that will change her life forever. Soon Simone is forced to question everything she has previously believed.
Bölümler
New Day
An inexperienced U-boat crew are plunged into a perilous secret mission, while new translator Simone starts work at the base.
Secret Mission
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.
Incurred Losses
Tennstedt and Hoffmann continue to butt heads aboard U-612, while rebel Carla Monroe plans a mission in La Rochelle.
Doubt
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.
Loyalty
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.
Against the Clock
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.
Hell
Forster reveals to Simone that U-612 has gone missing. Meanwhile, the resistance endanger the innocent to further their cause.
Reckoning
The U-boat crew struggle with recent events and what lies ahead. A revelation in La Rochelle infuriates Forster spelling bad news for Simone.