Knock Around the Block is the fifteenth episode of Season 1 of Happy Days. The episode was written by Ben Joelson and Art Baer and directed by Jerry Paris. It aired on April 30, 1974 on ABC.


The leader of the Dukes gang, Frankie and a couple of his tough cohorts arrive at Arnold's to thank Richie for helping his younger sister. Just as Richie finds favor with the Dukes, Potsie reports they've stolen his new bicycle.

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