When the pitcher drops out of Jennifer's softball team, Jennifer asks Arlene to be on the team. Arlene is not a sports person, and is unaware that she is only needed to fill the team with another player so as to not forfeit.
With so many players out with the flu; coach Alex (Michael J. Fox) asks Jennifer (Tina Yothers) to get nerdy Arlene (Tanya Fenmore) to join the girls' softball team, just so they can play in the big game.