Amber Tambourine is a sad, lonely little girl who has moved far away from her friends. Then one day, she and her doggies, Bandit and Roxy, encounter a polka dot rainbow. Suddenly, they find themselves in the Land of Laugh-a-Lot, where people are happy ALL THE TIME They laugh, they play...then they laugh some more. In no time at all, Amber makes many new friends and is happy once more. But this poses a dilemma Amber knows she must return home, but if she leaves, will she ever be able to find her way back?