Between The Chief (a hard-bitten flea), Kitty Katswell (a perp-popping perfectionist) and Keswick (a gizmo-generating genius), Turbo Undercover Fighting Force, aka T.U.F.F., is the slickest secret crime-crushing unit Petropolis has ever seen. Or anyway it was until Dudley Puppy showed up! Don't take that the wrong way. Dudley -- a mutt with the best of every doggie gene pool -- is a crime-fighting superstar. With the speed of a greyhound, the nose of a bloodhound and the punch of a boxer, he can't be stopped. But he's still a sloppy, excitable pup and he goes MAD for bones -- a weakness that is constantly landing Dudley and his purrfect partner Kitty Katswell in the claws of Verminious Snaptrap. Verminious is the wicked rat mastermind of the Diabolical Order Of Mayhem, or as cowering pets everywhere call it, D.O.O.M.! Along with such crusty comrades like Francisco the man-munching alligator, the shape-shifting Chameleon and feather-headed Bird Brain, Verminious keeps the streets of Petropolis crawling with evil schemes.
A secret agent labradoodle is recruited into a task force called T.U.F.F and seeks injustice throughout the city in which he lives in.
T.U.F.F. Puppy is an American animated television series created by Butch Hartman for Nickelodeon. It premiered on October 2, 2010 on Nickelodeon along with Planet Sheen. T.U.F.F. Puppy is Butch Hartman's third animated series for Nickelodeon, after The Fairly OddParents and Danny Phantom.
In early 2011, the series was renewed for a second season and premiered on December 10, 2011. The first season contained 20 episodes and seasons 2 and 3 are scheduled for the same. Currently, the series is on hiatus from the Nickelodeon channel, although reruns air every day in 90 minute to 3 hour blocks on the Nicktoons channel. The show temporarily returned on August 5, 2013 at 1:30 PM for one week before going back on hiatus.