Estranged Ana and Rachel Logan take a much-needed vacation to Thailand - perhaps their sisterhood could even be mended along the way. After an intense party session their group mysteriously wake up on a boat, the ocean carrying them toward a seemingly deserted island. As nightfall hangs over them, tempers rise, survival instincts kick in, and something evil lurks in the wilderness. Who will perish to the unknown?
Erin Greene's relationship with her partner could be better, yet despite the many arguments and physical altercations, she's determined to make it work with the father of her unborn child. Going out on a drive with the intention of quality time to themselves, Erin and Phil are left stranded in a snowstorm, yet the cold's not the only thing to worry about. It's possible they just might be surrounded by wolves.
Delving further into the bowels of Furnace Penitentiary, Alex Sawyer desperately tries to hold onto his fleeting sanity. After a failed attempt to escape the underground horrors, being thrown into solitary confinement is a fate worse than death. A hole in the rocky earth becomes his coffin, yet it won't save him from what roams the corridors, in search of warm flesh to eat.