The only thing more dangerous than the front lines was the fight to get there.

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.
Greyhound keeps every mind human — it fights its subject at zero distance. The story fights on E8/E11 of the E0–E14 reality ladder.
Films fighting at the same level of reality, about the same things.
The same preoccupations examined at another scale — one mind versus a nation.