Both the DVD and Blu-ray will contain commentary from director Xavier Gens, and actors Michael Biehn, Milo Ventimiglia and Michael EklundIt.
In the film, sudden nuclear attack forces nine strangers into a small, decrepit apartment building basement for shelter. Trapped for days underground with no hope of rescue, and unknown horrors awaiting them outside, the group begins to descend into madness, acting out vicious bouts of psychological and physical torture upon one another. As supplies dwindle, tensions flare, and they grow increasingly deranged, each digresses into a volatile and primal state of being. As everyone in the bunker gradually sheds the humanity they once held, even the thinnest chance of escape holds no promise of salvation on the outside.
