In the final 24 hours of the world’s toughest selection process, a team of Army Rangers encounter a threat beyond their imagination.

The Strauss family is on a knife’s edge. Sam is a resentful stay-at-home dad. Rachel feels the restlessness in her blood returning. Their children are getting out of hand. And a recent mudslide has forced the wolves out of the woods to look for food. As dusk falls and tensions rise, the family must come together to survive the night — from the threats outside and those within.

A veterinarian makes his living keeping horses healthy, but makes side money doing medical work for underworld figures, patching them up in a pinch. He gets over his head and suddenly his own life is in danger.