In this year's exceptionally evil Halloween episode, Springfield catches a case of the Y2K bug, Lisa and Bart catch some radiation, and Ned Flanders gets caught under Marge's car's tires. In the first segment, Marge accidentally kills Ned Flanders while driving late at night. But when Ned comes back to haunt the Simpsons, his own evil secret is revealed. In the second story, Bart and Lisa become superheroes after getting zapped by radiation. Together they battle against the evil Comic Book Store Guy after he takes Lucy Lawless, TV's Xena: Warrior Princess, hostage. In the final segment, Homer forgets to make the Springfield Nuclear Power Plant Y2K compliant and accidentally brings about the complete destruction of the town. When the government sets up spaceships to send citizens to safety, Marge, Lisa and Maggie are granted seats but Homer and Bart have to fend for themselves.