On a blistering desert highway in Arizona, a man and his daughter are stranded after a breakdown. A dirt-covered black 1974 Dodge Charger with a 400 V8 approaches, and the unseen driver strikes the man, killing him, before backing up and abducting the screaming girl. The girl is later found walking along the highway, bearing signs of a brutal ordeal, and two highway patrol officers place her in the back of a police car and take her to the hospital.
In Copper Valley, Laura is a newly hired bus driver who has left Los Angeles in search of a quieter place to raise her daughter, Stephanie. The town’s calm facade is shattered when the black Charger resurfaces while she is driving a route for kids aboard a 1982 Chevrolet G30 Wayne Busette. Not long after, the driver abducts another girl, who is later found alive but deeply traumatized. The threat to Laura’s world intensifies as the Charger begins to stalk her, and soon Kim, Stephanie’s friend, is taken too and later found dead in a lake.
Hopeless and frustrated, Laura seeks help at the local police station and speaks with Detective Dummond. The detective admits that despite extensive searches, no one has reported seeing the car or its driver, and the case becomes increasingly personal for Laura as the charger appears again in front of her house, revving its engine and keeping a menacing presence in the night.
The next morning, as Laura rushes to pick up Stephanie from gymnastics practice, the Charger appears and abducts the girl right in front of her, with children on the bus crying for help. Laura pursues, and the scooter-like menace bolts away, forcing the bus into a harrowing chase through town and along dusty backroads. A motorcycle officer pulls Laura over for backup, but the car reappears, ramming the cop car and sending Stephanie’s cries streaming from the window.
Despite the chaos, Laura keeps control of the situation. She and the kids survive a near-disaster when the bus teeters on the edge of a cliff near a train bridge, and she manages to restart the bus, reverse, and continue the pursuit. The chase leads them to a construction site where Laura disembarks the kids to call for help from a nearby trailer, while the Charger roams the area, attempting to run her down.
The pursuit intensifies as the car and the bus roam the quarry and surrounding roads. Laura rams the Charger at key moments, but it’s not until Stephanie makes a daring move—climbing from the Charger onto the bus—that the two of them gain a fragile upper hand. Laura strikes again, sending the Charger tumbling toward the canyon’s edge.
The car crashes into a storage building filled with explosives, triggering a massive fire that incinerates the Charger and the driver. In the aftermath, mother and daughter are finally reunited, their ordeal giving way to a quiet moment of relief as they board the rescued school bus and begin to drive off toward the sunset.
