Long before the oil fields reshaped the land, a group of Comanche people contained a malevolent force inside a creature formed from a patchwork of animals. They sealed it with a spear planted in the earth and clung to a rabbit-foot talisman for luck. A curious young boy pulled the spear free and pocketed the talisman, teasing the monster with it. When a Comanche guardian caught the boy, he fled, taking the rabbit’s foot with him. Realizing too late that the talisman is gone, the tribe repositions the spear, but the containment is tenuous; soon after, white men arrive and begin drilling for oil, unknowingly awakening the ancient evil once more.
Skip to the present: divorced father Mance Cashen, Patrick Kilpatrick moves to the area with his wife Emily Cashen, Suzanne Savoy, and their baby. His son from his first marriage, Willy Cashen, Chris Miller visits and notices something strange in the house. He tries to warn his father and his stepmother, but they don’t believe him. Later, while swinging over a small water hole, Willy is seized by a creature, the monster grabbing his foot before he struggles free and escapes. He befriends the local drunk, T. C. van Houten, Ford Rainey, a kindly old man with memories of the area and a sense that something dangerous lurks near the oil well.
A Comanche Chief, Chief Sam John, Michael Wren, arrives to warn Mance of the evil and the need to keep it contained. He explains that the creature was originally meant to stop the white man, yet it strikes indiscriminately. Mance stubbornly dismisses the warning. Willy later takes a spear he found on the property to Sam John and seeks answers. Sam John persuades Willy to promise to stay out of the cellar and to call for him if anything happens. The Chief is dragged into the cellar by the monster, proving the danger is real. Willy, determined to prove what he knows, sets up booby traps in the basement in an attempt to trap the monster in sight and show he is telling the truth. The creature startles him, forcing Willy to retreat.
Willy’s boldness grows. He returns to the basement armed with a flame-thrower, improvised electrical cables, and a lucky rabbit’s foot. The monster interrupts his plan, and Willy must flee again. He lures Tommy Boatwright, Kyle Boatwright’s son, Alex Pederson, to the water hole as bait, and the monster consumes him. Kyle Boatwright, Tommy’s father, Lou Perryman comes into the cellar in search of his son, only to be caught in a bear trap triggered by the creature; the monster kills Kyle, deepening the danger for Mance and Willy. Frustrated with Willy’s stories, Mance locks Willy in the kitchen with the cellar door nailed open to force him to accept reality, but Willy’s warnings prove true. Willy manages to electrocute the monster, saving his dad, yet the beast is only stunned.
Mance disappears into the tunnels toward the water hole, while Willy, his step-mom, and the baby flee to the car. In a final bid for safety, Willy grabs some dynamite and rigs it to a toy car to kill the monster, but the explosives don’t work as planned. Mance returns to the cellar and hooks up additional explosives, barely escaping with his life. In a climactic burst of action, Mance and Willy blow the monster up together while escaping, ending the terror that had begun long ago beneath the land.
The story weaves a tense arc from ancient containment to modern confrontation, showing how a hidden evil can resurface when the land’s history is disturbed, and how a father, a boy, and a wary ally confront that danger with courage, wit, and a stubborn will to survive.
