The Griffins usher in the Millennium with a bang----a nuclear one. Victoria Principal and Patrick Duffy have cameos (as their "Dallas" characters Pam and Bobby Ewing) in a live-action coda to the program, in which every Y2K bug that can bite Quahog (and the rest of the world) does. But the Griffins survive and head off, "Mad Max"-like, on a sardonic odyssey through post-apocalyptic New England, where Griffin's Law prevails---until Peter shoots himself in the foot.