USSR's first nuclear ballistic submarine embarks on its maiden voyage in the North Atlantic, but a malfunction in its nuclear reactor puts the lives of its crew, led by Captain Alexi Vostrikov, at risk of a catastrophic disaster.

K-19: The Widowmaker
A nuclear submarine's maiden voyage turns into a race against time as a critical failure threatens catastrophic consequences, requiring the crew to take drastic measures to prevent a nuclear catastrophe.