Jack Powell appears to be an average, middle-aged forty year old man--who plays with G.I. Joe and wears Power Ranger pajamas. But Jack is only 10-years-old. He suffers from a genetic disorder that causes him to physically age four times faster than a normal person. Fearing ridicule from the outside world, Jack''s parents have kept him secluded in their home, which they have stocked with every toy a young boy could want. Toys can''t take the place of the real friends which Jack craves. Now he''s about to embark on the greatest adventure of his unusual life--he''s about to enter the fifth grade.