Harper Sloan returns to her ranch from a search-and-rescue mission-only to discover her son has been kidnapped. Blackmailed by drug runners, she's forced to retrieve a lost narcotics package in exchange for her child. And there's only one man who can helpher ex, security specialist Luca Brady, who doesn't know he's a father. Together they brave treacherous terrain and a snowstorm to save the boy, but the journey quickly turns into a fight for survival. Can Harper and Luca stay alive long enough to take down the cartel?