Some of the worst dogs in Britain come face to face with three trainers, who will attempt to knock the dogs and their owners into shape with a strong dose of tough love and hard discipline. Dave the rottweiler has terrorised owner Eileen for over a year, but can Mic Martin re-establish her as leader of the pack? Robert Alleyne wrangles with a scrounging beagle and her bickering owners, while Lynne Davies meets her match trying to teach a disgruntled old show-dog some new tricks.