In a majestic national park, a terrifying threat emerges when a monstrous grizzly bear, standing over 15 feet tall, begins attacking campers and hikers. The tranquility of the wilderness is shattered as the vicious creature leaves a trail of destruction, prompting park officials to take swift action. Michael Kelly, the head ranger, initially underestimates the danger, believing it to be the work of a common bear. As bodies start to pile up, Kelly teams up with Naturalist Arthur Scott and helicopter pilot Don Stober to track down and eliminate the beast. Their first attempts are futile, as the grizzly continues its rampage, effortlessly eluding capture and leaving them baffled by its size and ferocity.

Realizing the severity of the situation, Kelly faces mounting pressure from his superiors to resolve the crisis before more lives are lost. Determined to hunt down the bear, they venture deeper into the wilderness, following clues and tracking patterns that reveal the creature's unpredictable nature. With each passing moment, the stakes rise as their adversary grows bolder. The men grapple with their fears and doubts, pushing their resources to the limit in a desperate bid for survival. The tension peaks as they close in on their target, leading to a final confrontation that will determine whether they can restore peace to the park or face utter devastation.