Still reeling from the loss of three lives, Hannah (Angelina Jolie) is a smokejumper who's perched in a watchtower high above the Montana wilderness. She soon encounters Connor (Finn Little), a skittish boy who's bloodied, traumatized, and on the run in the remote forest. As Hannah tries to bring him to safety, she's unaware of the real dangers to follow: two relentless killers (Aidan Gillen and Nicholas Hoult) hunting Connor, and a fiery blaze consuming everything in its path.