Set a decade after the original military disaster, a pair of toxic waste drums from the Trioxin-5 chemical spill are being transported across the country. During a
stormy night, one of the barrels accidentally falls off a military truck into a river near a suburban housing development. Curious and adventurous teenager Jesse Wilson, seeking to escape the relentless bullying of his older brother Billy, explores the abandoned construction sites nearby with his rebellious friend Tommy. They discover the leaking steel drum, unaware of its deadly contents. Curiosity quickly turns to terror when the green, glowing gas escapes, and a stray cat entering the barrel is shockingly reanimated into a horrific, flesh-hungry zombie.Simultaneously, a bumbling medical supply driver named Ed and his cynical partner Joey are stranded nearby when their van breaks down in the torrential rain. Seeking shelter, they stumble into a graveyard adjacent to the construction area. The Trioxin gas, carried by the rising storm, sweeps over the cemetery and seeps into the damp earth, waking the dead from their eternal slumber. Driven by an insatiable, primal craving for human brains, the newly risen corpses attack Ed and Joey, infecting Ed and forcing the duo to flee for their lives.Chaos erupts across the quiet neighborhood as the undead horde multiplies rapidly, hunting down residents and overwhelming the local authorities. Jesse and Tommy soon realize the terrifying truth: the dead are walking, and bullets only seem to make them angry. They manage to escape to the local cable television station, where they team up with Joey and a quick-witted neighborhood girl named Lucy. The survivors barricade themselves inside, trying to figure out how to stop the unstoppable slaughter. Meanwhile, Ed undergoes a horrifying
transformation into a zombie, yet miraculously retains his personality and capacity for speech for a limited time, adding a layer of tragic dark humor to the escalating nightmare.As the zombie horde breaches the station, the desperate group makes a daring dash to a nearby high-voltage power plant. Remembering military protocols and the lethal weakness of the Trioxin zombies to massive electrical charges, they lure the grotesque horde into the facility's core. With the zombies massed together, Jesse overrides the plant's controls, unleashing a massive, blinding surge of electricity. The high-voltage current fries the undead army, neutralizing the threat once and for all and finally securing the exhausted survivors' survival.