To fully appreciate this film's insanity, I think it's prudent to put its premise into a single sentence. Here it is:
"Because the planets have finally aligned, an evil Irish Warlock and novelty toy company owner mysteriously steals a magical Stonehenge rock and harvests its dust to plant into chips for his heavily advertised and widely distributed Halloween masks, produced in his small-town California factory staffed by a force of seemingly human, super-strength robots, so that kids around the world will wear the masks while watching his special commercial, which serves as a trigger for the chips to shoot off lasers and turn the children's heads into piles of deadly snakes and bugs, as a sacrifice to the Gaelic gods."
Talk about your next-level bonkers