While on a picnic near the BOSS Oil refinery, Rantdog and his family are attacked by Tar Zombies. Only the bumbling Rantdog survives. He vows to avenge his family's untimely deaths. Instead, he's discovered drunk in a bar by Smash, a BOSS Oil Executive, who's masquerading as a journalist. Together they attack the Tar Zombie hordes. They make things much worse, but they do fall in love! Rantdog's undead family and, Twitch, the BOSS Oil CEO, are not impressed. Rantdog learns that revenge is no picnic!