When Russia's first nuclear submarine malfunctions on its maiden voyage, the crew must race to save the ship and prevent a nuclear disaster.
In the dark silence of the sea during World War II, the submarine U.S.S. Tiger Shark prowls on what should be a routine rescue mission. But for the shell-shocked crew, trapped together in the sub's narrow corridors and constricted spaces, this is about to become a journey into the sensory delusions, mental deceptions and runaway fear that lurk just below the surface of the ocean and deep inside the human psyche.
A German submarine is boarded by disguised American submariners trying to capture their Enigma cipher machine.
A German submarine patrols the Atlantic Ocean during World War II, manned by a crew that must contend with tense conflicts and long stretches of confined boredom. While war correspondent Werner (Herbert Grönemeyer) observes day-to-day life aboard the U-boat, the grizzled captain (Jürgen Prochnow) struggles to maintain his own motivation as he attempts to keep the ship's morale up in the face of fierce battles, intense storms and dwindling supplies.