Jimmy's determination to captain a winning baseball team leads him to rev up the equipment with Neutronic technology.

Jimmy is enlisted as a spy by the Big Top Secret Organization. His mission: find and rescue Agent X - who turns out to be Jimmy's movie hero, Jet Fusion.

Jimmy runs for class president against Sheen, Libby and Bolbi - the new kid.

Jimmy returns from an excavation on the Twonkus-3 comet with a small furry creature burrowed in his soil samples that have a rather violent reaction to music.