Huge and cuddly, Clifford is the most lovable dog in the world - he lives with his human friend Emily Elizabeth on Birdwell Island. But he's worried that his massive appetite is causing her family financial problems and that they might lose their house. A poster advertising a competition seems like the answer to his prayers - the prize is a lifetime's supply of dog food! So he and two of his canine chums run away to join a travelling carnival and enter the competition. Soon Clifford's the star of the show. But will he win the prize? A charming animated movie that will delight Clifford's multitude of young admirers.