A group of UAC Marines responds to a distress call from a top-secret scientific base on Phobos, a Martian moon, only to discover it’s been overrun by demons.

A scientist builds a massive ark after his warnings of an Earth-destroying flood are ignored. But when it’s evident the disaster will occur, those who maligned the scientist now turn…

Five friends who reunite in an attempt to top their epic pub crawl from 20 years earlier unwittingly become humankind’s only hope for survival.