Jimmy to his pals invents a machine that reduces his awesome brainpower.

In his lab, Jimmy constructs the perfect little brother he never had, Brobot.

Jimmy's Granny comes to stay while Judy and Hugh are off on a third honeymoon.

Carl is too tired from a recurring nightmare for Jimmy's experiments.

Jimmy forms a band for the school talent contest. / Jimmy puts the city into a new Ice Age

Jimmy adapts his running shoes so that he can move at lightning speed.