Dick Dastardly and his snickering canine co-pilot Muttley plot to stop that pigeon aboard their World War I flying machines in this popular Hanna-Barbera spin-off of Wacky Races featuring the vocal talents of Paul Winchell and Don Messick. When muttering Muttley decides he's had enough, he flies off into his own fantasy world where he gets to be the boss for a change!