A television reporter named Lori Tanner infiltrates the EMAX research facility to gather evidence of animal abuse. While there, she discovers a genetically modified Tibetan Mastiff named Max. Seeing the dog's apparent suffering, Lori decides to rescue Max and takes him home. Unbeknownst to her, Max possesses various altered traits, including enhanced strength, agility, and intelligence, making him an exceptionally formidable creature. However, these modifications also come with dangerous and unpredictable behaviors. Initially, Max seems to be the perfect pet, showing loyalty and affection towards Lori.

As time progresses, Max's unpredictability begins to surface. His protective nature turns increasingly aggressive, revealing the darker side of his enhancements. Lori begins to notice strange occurrences and violent incidents linked to Max, prompting her to investigate his origins at EMAX. As her search for answers deepens, the malevolent Dr. Jarret, who is responsible for Max's genetic modifications, intensifies his efforts to retrieve his prized experiment. The situation escalates, leading to a tense battle of wits and survival against the backdrop of Max's deteriorating behavior and Dr. Jarret's relentless pursuit.