Darrin Noland leads a deliberate and careful life, but when his old friends spring a camping trip on him it's a good time he can't run from. The escape turns south when Darrin finds out the unsettling news that Warren, someone he has avoided since junior high, is also along for the ride. Darrin attempts to avoid an awkward reunion but horrible events caused by a mysterious creature force him to face his regretful past and take on his beast within.