On February 11, 1975, Maureen McCormick stepped out of the Brady Bunch groovy ’70s world and into 1950s Milwaukee as guest star Hildie on Happy Days. In the season 2, episode 16 titled “Cruisin’,” she appeared as a spirited young woman involved in a drag race mishap that drew in Richie Cunningham, Potsie Weber and Ralph Malph.

After Marion Cunningham dents Richie’s car, he, Potsie and Ralph are handed Howard’s DeSoto to go cruising. They meet Hildie and her friends, only to realize those girls are dating members of a local gang called the Dragons. The episode escalates into a drag race showdown, with Fonzie eventually saving the boys from serious trouble.