Hell Below (2016)

S02E05 North Sea Showdown aka Sub vs. Sub

In the frigid waters near Norway in 1945, a German U-boat sets sail to deliver classified technology to Japan, oblivious to the fact that a Royal Navy V-class submarine has been dispatched to patrol the region. Both commanders, unaware of each other’s presence, are on a collision course that will lead to the first-ever underwater submarine duel. Experience the momentous clash between HMS Venturer and U-864 as they engage in this unprecedented battle beneath the waves.