Popovich is an ex circus legend struggling as a street performer in the wild west streets of Las Vegas. When his junkyard home full of stray animals gets into trouble, he and his animal buddies use all their circus tricks to save it.
Shortly after a chemical weapon explosion in the Nevada desert, two scientists find themselves confronting a sinister cover up, and a band of hostile survivors who are looking to escape the quarantined area known as Territory 8.
