Angst-ridden Charlie Brown attempts to motivate his team, while Lucy in right field nettles poor Chuck into a nervous wreck. With their losses mounting, Charlie Brown tries every remedy to score a win--even trading his own dog--yet nothing improves the team's dismal record. Then Chuck orchestrates "the greatest trade in the history of baseball."

Babies can communicate with each other using 'baby talk', and have innate knowledge of the secrets of the universe. The infant geniuses become involved in a scheme by media mogul Bill Biscane. Assisting the geniuses is a legendary superbaby named Kahuna, who joins up with several other babies in an attempt to stop Biscane, who intends to use a state-of-the-art satellite system to control the world's population.