Still reeling from the loss of three lives, Hannah (Angelina Jolie) is a smoke jumper who's perched in a watchtower high above the Montana wilderness. She soon encounters Connor, a skittish boy who's bloodied, traumatized and on the run in the remote forest after witnessing his father's (Jake Weber) murder. As Hannah tries to bring him to safety, she's unaware of the real dangers to follow: two relentless killers hunting Connor, and a fiery blaze consuming everything in its path.