After the accidental death of his free-spirited pregnant wife, Penny, reserved architect Henry struggles to find meaning in his life and in the work that once consumed him. As he continues to work on the house he and Penny were building together, Henry is drawn to a mysterious young runaway named Millie whom Penny had often talked about helping. Though Millie mistrusts Henry at first, the two build a tentative friendship as she reveals her ambition to build a raft to sail away from her dark past and start anew. Taking on the father role he was meant to have, Henry neglects his job and other responsibilities to help Millie on her quest. As they work together, he comes to understand that she can help him to heal as much as he can help her.
After a major shipment of drugs goes missing on the US-Canadian border, forest ranger and former Navy SEAL Henry is plunged into survival mode when the drug cartel forces him to help retrieve the downed package. Trapped in the wilderness with no communication to the outside world, Henry finds himself face to face with Clay, a man with a personal vendetta against Henry who has returned for retribution. Now, the two mortal enemies must make a choice: put aside their past and work together, or die alone at the hands of the drug runners, a ruthless gang who will stop at nothing to retrieve their lost cargo.