When a big blue mammoth knocks on the door of one small boy's house, a BIG adventure begins. But a mammoth is just too big for the home, the park and the town! But this surprise visitor is about to become the town's hero.When a big blue mammoth knocks on the door of one small boy's house, a BIG adventure begins. But a mammoth is just too big for the home, the park and the town! But this surprise visitor is about to become the town's hero.