A group of former military elites set out to explore an uncharted abyss, not knowing their worst nightmare is waiting for them deep beneath the ground.

　　该剧故事将围绕一艘从伦敦开往纽约，满载着移民的船只展开，当船上的人发现了另一艘移民船时，他们的旅程发生了意想不到的改变，那艘船上的东西令一切都变为了噩梦。