While babysitting Dusty Rubble, Fred and Barney (with the help of Wilma and Betty) finally get him to sleep. Mr. and Mrs. Rubble think they did a great job and make Fred and Barney take him to the carnival. While there, Dusty starts being a pain to Fred and Barney and disappears on them, and it's up to Fred and Barney to find him before the Rubbles come to pick him up.
Elenco: Scott Menville , Hamilton Camp , B. J. Ward , Mel Blanc , Frank Welker , Charlie Adler , Bumper Robinson , Julie McWhirter , Lennie Weinrib , Susan Blu , Marilyn Schreffler , Henry Corden , Kenneth Mars , Jean Vander Pyl , Michael Rye .