Some of the worst dogs in Britain come face to face with three trainers, who attempt to knock the dogs and their owners into shape with a dose of tough love and hard discipline. Mic Martin attempts to tame mischievous Lurcher Tizzy, but it's Tizzy's owner who's going to be the tougher challenge. Trainer Lynne Davies tries to reform George, a sweet-looking chocolate Labrador who's the talk of the town due to his violent outburts. Dog behaviourist Robert Alleyne takes on bull terrier Lexie.