The Return of the Living Dead

On July 3, at the Uneeda medical supply warehouse, foreman Frank tries to impress new employee Freddy by showing him military drums that wound up in the basement of the building. Frank accidentally unleashes the toxic gas in one of the barrels, which seemingly melts the cadaver inside and reanimates another cadaver stored in a meat locker. Joined by their boss Burt, the three discover that every part of the zombie can survive independently. Burt has the zombie incinerated at a nearby mortuary by his friend Ernie, but this inadvertently causes the deadly gas to contaminate the air, creating a toxic rainfall that reanimates the corpses in a cemetery.