 Laurie Strode (from Halloween I and II) is now the head mistress at a prestigious private school, which is attended by her 17 year-old son. On the 20th anniversary of the events that occurred in Halloween I, Laurie begins having nightmares, flashbacks, and visions of her evil brother, Michael Myers, coming to kill her. Myers shows up at the school on Halloween night, setting the stage for a "final" battle between Myers and Strode.