Teresa Mendoza's boyfriend is a drug smuggler who the narcos of Sinaloa, Mexico, call "the king of the short runway," because he can get a plane full of coke off the ground in three hundred yards. But in a ruthless business, life can be short, and Teresa even has a special cell phone that Guero gave her along with a dark warning. If that phone rings, it means he's dead, and she'd better run, because they're coming for her next. Then the call comes.