1Enigma Capture
The life of German U-Boat commander Fritz Julius Lemp, who accidentally sinks the passenger liner SS Athenia, takes a series of dramatic turns when he is later forced to the surface after attacking an Allied convoy.
2Commander Down
After a violent collision, an American submarine crew begins a desperate bid for survival.
3Killer Strike
A German U-boat commander launches a shocking attack at the heart of the Royal Navy.
4Torpedo Rampage
An American submarine commander risks everything in a fight from within an enemy convoy.
5The Longest Journey
A German U-Boat Commander makes an unprecedented voyage to attack Allied shipping off the coast of Australia on Christmas morning.
6Iwo Jima Pilot Rescue
American submarines risk everything to surface in enemy waters and rescue downed aviators.