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Dennis, Walter and Angel Face are forced together to face rival school Greytown Prep in the annual triathlon competition.

Dennis and his faithful hound Gnasher are out to make every day as much fun as possible, but their adventures often lead them into trouble.

A disastrous PE lesson ends with Mr De Testa trying to teach the culprits a lesson in teamwork - Dennis, Walter and Angel Face are now forced together to face rival school Greytown Prep in the annual triathlon competition. The team are fighting right from the start but, after a run-in with the opposition during a training session, they decide to put their differences aside and unite for the win.

First shown: 3:45pm 19 Dec 2013
Available until Fri 7:25am
Duration 22 mins