Waitress Karla Dyson takes her six-year-old son, Frankie, to a carnival. She receives a call from her lawyer discussing a custody battle over Frankie. Karla ends the call and realizes she has lost sight of her son. She looks for him but can only find his toy voice recorder. In the parking lot, she arrives just in time to see a woman dragging her son into a green Ford Mustang driven by a male. Karla initially chases after them on foot, and drops her phone, before entering her vehicle and driving after them.

The two kidnappers evade Karla by tossing a spare tire into a busy highway and causing a pile-up and then threatening to kill Frankie with a knife. Karla learns the female captor's name is Margo through a recording from her son's toy.