A bomb-sniffing dog is fired from the police force for a high profile mistake. That night Cad (Patrick Warburton) dognaps him, Cad works as a henchman for Simon Barsinister (Peter Dinklage) a mad scientist, who injects him with an elixir. The dog escapes, but now has superpowers. He's adopted by Dan Unger (James Belushi) a security guard - an ex-cop, who's a widower with a moody teen son, Jack. While Barsinister and Cad plot to catch him and take over the city.