Some of the worst dogs in Britain come face to face with three tough trainers. Flake the Jack Russell is charged with serial urinating and bad behaviour on the lead; Maggie is a Staffordshire terrier with a murderous streak; and Henry is a Weimeraner who rules the roost and even dictates what clothes his owners can wear. The owners of these dogs have had enough, so it's time for extreme measures - a week in Dog Borstal.