Witnesses to a brutal murder, orphaned siblings Billy and Sara are marked for death. Tasked with eliminating them is Frank Lockman, a ruthless assassin and former Navy SEAL who has never failed a mission. But this time, failure means his own death.

Fleeing deep into the unforgiving wilderness of British Columbia and Washington State, Billy and Sara must rely on their instincts to survive—not just against Lockman, but against the deadly predators that lurk in the forest.

Yet, as the relentless assassin closes in, something far more terrifying begins to hunt them ... a monstrous presence that could finish Lockman's job for him.