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 strong dose of tough love and hard discipline. Tank is a cold-hearted, abusive English Bull Terrier with an eye for anyone but his owner. Loala is a snarling, barking Rhodesian Ridgeback cross who's always spoiling for a fight, and Benson isn't so much Great Dane as great big wuss.