Blossom Russo is a highly intelligent and spunky teenager. The youngest of three, she lives with her divorced musician father, Nick, eldest brother and recovering substance abuser Anthony, and decidedly not-so-bright middle brother Joey. Along for the ride is Blossom's ditzy best friend, Six, who sometimes shows flashes of great perception.

Emperor Spengo sees Marge Nelson and using a giant magnet, kidnaps her and her husband Dick, hoping to make Marge his before blowing up the Earth. The Emperor and other inhabitants of his planet are somewhat less than bright, and Dick begins reliving episodes of Flash Gordon and Buck Rogers in order to rescue Marge, save the Earth, and restore the rightful emperor to the throne.