Two colleagues become stranded on a deserted island, the only survivors of a plane crash. On the island, they must overcome past grievances and work together to survive, but ultimately, it's a battle of wills and wits to make it out alive.

When a mutating, highly contagious fungus escapes a sealed facility, two employees – joined by a grizzled bioterror operative – must survive the wildest night shift ever to save humanity from extinction.