Zachary Beaver, a sideshow attraction also known as the world's fattest boy, arrives in the sleepy town of Granger, Texas.

Calvin and his friends, who all live in an orphanage, find old shoes with the faded letters MJ connected to a powerline. One stormy night, they go to get the shoes when Calvin and the shoes are struck by lightning. Calvin now has unbelievable basketball powers and has the chance to play for the NBA.