Freckled, all-American racecar driver Tom Slick (voiced by Bill Scott competes in various races with his trusty vehicle, the Thunderbolt Grease-Slapper. He is accompanied by his girlfriend Marigold (voiced by June Foray) and his elderly mechanic Gertie Growler (also voiced by Bill Scott). The two women do not always get along well. A recurring antagonist is the evil Baron Otto Matic (voiced by Paul Frees), and the Baron's stupid lackey Clutcher (voiced by Daws Butler impersonating Frank Fontaine), whom the Baron had a penchant for hitting across the head with a monkey wrench. Seventeen six-minute episodes were made.
As the theme is sung, Slick's grease slapper suddenly "hops" out of control off a road and into a barnyard occupied by farm animals,knocked somewhat briefly unconscious with a chicken sitting on top of his head as he drives straight into a brick wall,yet miraculously getting out of the sudden pandemonium as his car falls apart in mid-air,and suddenly falling back together again then jumping onto (and off) a stone fixture bearing his name and getting back on the road waving his hand and smiling.