A group of kids discover one of the drums containing a rotting corpse and release the 2-4-5 Trioxin gas into the air, causing the dead to once again rise from the grave and seek out brains.
Return of the Living Dead Part II is a 1988 American comedy horror film written and directed by Ken Wiederhorn, and starring Michael Kenworthy, Marsha Dietlein, Dana Ashbrook, Thom Mathews, James Karen, and Phil Bruns. It is the first of four sequels to The Return of the Living Dead.