In the quirky and perilous world of Fossil Ridge, a remote Texas county, the story unfolds with a haunting prologue narrated by Abbi Whitecloud, who recalls a mother’s desperate prayers and a brutal raptor attack that shattered their life. The camera then shifts to a rugged ranch where a man named Dr. Cane tends to a chilling collection of dinosaurs kept as “pets,” a bizarre hobby that shadows the town with unease. Abby, now living alone near her parents’ old home, crosses paths with a worldly yet troubled life as she endures the small-town grind, including a boss at Billy Wayne’s diner who treats her poorly and even tries to push her into a skimpy uniform.
The film diverts to a road-heavy sequence: a flamboyant trio—[Josie Hutchens], the blonde guitarist; Colleen, the Goth drummer; and [Little Willy], a flamboyant vocalist—set off for gigs, only to face car trouble and a string of bad luck on the highway. In parallel, a pair of federal investigators—[Special Agent O'Reilly] and [Special Agent Logan]—trek toward Fossil Ridge to probe the spate of strange happenings that began after Abby’s mother’s death. At a gas station where Abby learns that her path will soon collide with Lucas Young, his loudmouth friend Sheldon Macabeach, and their carefree entourage, the group discovers that the town’s gas supply has mysteriously vanished, redirected by Dr. Cane to fuel his dinosaur cages.
Night settles in as the teams converge at the ranch. Dr. Cane collapses from a heart problem, leaving the others to navigate an imminent danger that promises to upend their lives. The cages, it turns out, are not simply chambers but gateways; a careless switch labeled with a nameless “Doors” label unleashes chaos as a T. rex and its lesser predators surge into the world outside. Beast, a member of the road crew, is swiftly overtaken, and the group scatters in panic. The horror escalates as a raptor attacks Josie, sending the group into a frantic retreat that zigzags through Abby’s home and a nearby town.
The carnage does not pause. Billy Wayne, the diner boss who always seemed to be waiting in the wings, is confronted by the rampaging creatures and is consumed in a shocking moment that jolts the survivors back into flight. The danger intensifies as Little Willy is cornered in a motel bathroom and torn apart by a raptor, a grim reminder that no one is safe. Lucas, who had earlier teased danger with bravado, arms himself with improvised armor and a BB gun in a desperate bid to defend his companions, but fate catches up with him as the night’s predators close in.
With the townscape transformed into a cataclysm, Abby, Colleen, and Sheldon find themselves trapped in a factory while the Rex relentlessly pursues. The pursuit ends with Colleen and Sheldon meeting a brutal end as the dinosaur slams through their defenses. In a final act of daring, Abby hurls a lit lighter toward a bank of gas tanks, triggering a fiery blast that finally brings the beast down. The arrival of the special agents marks a fragile turn toward resolution, and Abby is taken away to safety, her future momentarily secured in the wake of the raid.
Yet the ending leaves a chilling sting. In a final coda, Abby steps onto a stage at a strip club, her dream seemingly realized, even as a stark revelation sits in the shadows: the raptors are still out there, roaming Fossil Ridge and keeping the threat alive, a reminder that the danger may not be contained so easily after all.
