Indulging in forbidden mad pies almost costs little Tim and sister Helen the circus, grandpa had promised them. When they got their faces and their clothes all "chocolate dirt," grandma said they must be punished; of course, that meant, no circus. Perfectly aware that the penalty is all out of proportion to the enormity of their crime, Tim and Helen run away to the show. Their adventures and how they are traced thither by their exasperated grandparents, is the burden of this intensely amusing little farce. Of course the young sinners win out. In the closing scene grandpa and grandma are down on all fours on the library carpet, bitted and bridled, each surmounted by a flushed and triumphant young rider, who holds the reins of the situation in a sturdy, indomitable fist. - IMDb