To get revenge on Cindy for winning a race, Jimmy adapts his running shoes so he can move at lightning speed.

Timmy Turner is magically sent to the secret lab of none other than Jimmy Neutron, the boy with the genius IQ. How will Timmy and Jimmy get back to each other's own worlds?

Jimmy and Timmy are at it again: bickering over the affections of Cindy, but somehow end up fighting off enemies together!