For seven years, Joey Miller's brother Noah blamed her for the fire that killed their parents. After a fall into an icy river, she wakes to hear him point at a terminally ill stranger: "That's your brother. Leave me alone." Joey accepts Ian as family. She stays beside him through sleepless nights and risks her life crossing a blizzard to find a surgeon for his failing heart. As the two give each other a reason to live, Noah realizes she is no longer coming back. He follows her into the mountains, desperate to undo the lie he told her: "I'm your brother.‘’