Deadfall Trail (2009)

The tough, no-nonsense Julian and his more laid-back friend John are a couple of veteran campers who decide to embark on a no-frills expedition into the deep Arizona wilderness. Obnoxious troublemaker and blundering tenderfoot Paul tags along. However, things go horribly awry after John gets seriously wounded and the subsequent pressure causes Julian to degenerate into a ferocious primal state.