The forces of evil are attempting to recapture a human-inhabited Earth-like planet that has been liberated by rebels. The son of one of the rebel leaders, an electronic genius, searches the galaxy for a hero and finds Captain Zoom, star of a 1950s TV series. He is transported to the planet as its savior, which role he must play despite himself.

As next in line to take over his father's law firm, Ohio rich kid Joey's life is all planned out. But a chance encounter with a gorgeous, free-spirited female rock drummer inspires Joey to chuck his plans and move to Los Angeles, where he hooks up with an all-girl rock band and learns the ins and outs of the L.A. music underground.