In a moment of desperation, Ruby Chase makes a vow of servitude to a monster (Frank). She breaks her vow by committing suicide, setting Frank on a course of bloody revenge against the people she loved the most.
A first-time captain leads a convoy of allied ships carrying thousands of soldiers across the treacherous waters of the "Black Pit" to the front lines of WWII. With no air cover protection for 5 days, the captain and his convoy must battle the surrounding enemy Nazi U-boats in order to give the allies a chance to win the war.