The captain of a Cold War Soviet missile submarine has secretly been suffering from seizures that alter his perception of reality. Forced to leave his wife and daughter, he is rushed into a classified mission, where he is haunted by his past and challenged by a rogue KGB group bent on seizing control of the ship's nuclear missile. With the fate of humanity in his hands, the captain discovers he has been chosen for this mission in the belief he would fail. This film is a suspense submarine thriller about extraordinary men facing impossible choices.