Lost in the frozen depths of the Atlantic a German U-Boat crew find themselves on a collision course with objects stranger than they can fathom. The truth leaves them bathed in confusion in this submarine drama of domestic proportions. Lost in the frozen depths of the Atlantic a German U-Boat crew find themselves on a collision course with objects stranger than they can fathom. The truth leaves them bathed in confusion in this submarine drama of domestic proportions. Lost in the frozen depths of the Atlantic a German U-Boat crew find themselves on a collision course with objects stranger than they can fathom. The truth leaves them bathed in confusion in this submarine drama of domestic proportions. Lost in the frozen depths of the Atlantic a German U-Boat crew find themselves on a collision course with objects stranger than they can fathom. The truth leaves them bathed in confusion in this submarine drama of domestic proportions.