Mark Branski is an FBI agent along with his partner Donald French. The two collaborate with Branski's niece Jen and her cowardly talking dog, Chubbie Webbers to investigate paranormal phenomena. A recurring theme of the show is how they mostly go up against nasty, nasty monsters and wacky forces of evil, yet sometimes kill good-intentioned "adversaries" without a second thought, often based on just following orders, heated emotions or the Bible.