Hoffmann struggles to hang on as his chance to escape heads toward US shores. Margot pushes on with her plans.

When Johannes' plan emerges, Gluck knows only one man is capable of stopping him. Margot needs help to get the Goldblatts out.

Tensions build beneath the ocean as Wrangel continues his pursuit of U-822. In New York, Sam takes drastic measures.

An attempt to get his crew on side has serious consequences for Johannes. Margot finds a vital ally as Forster reaches St. Remy.

Keen to impress his superiors, Forster cracks down on Anatole's wayward behaviour. Wrangel finally has his arch rival in sight.

Johannes and Wrangel try to bring their crews into line. Despite his growing love for Cassandra, Hoffmann seeks an escape route.

Wrangel catches up with Johannes, leading to a dramatic showdown out in the Atlantic. Hoffmann shows up at Cassandra's place.

Hoffmann struggles to hang on as his chance to escape heads toward US shores. Margot pushes on with her plans.