Pops is used to slinging hash. But when he runs for city council against an unscrupulous politician, he winds up slinging mud instead -- with Shawn and Marlon as his campaign managers. ''Gomer Pyle, U. S. M. C.'' veteran Ronnie Schell appears in this new episode. He plays a politician known to be corrupt, and when he announces his candidacy for another city-council term, Pops (John Witherspoon) decides to oppose him. Marlon and Shawn become their father's campaign managers and consider devious tactics.