It's fun to be a Baby-sitters' Little Sister!
Karen plays on the Krushers softball team. One day when the Krushers are in a game, Karen hits a home run! So she starts calling herself Home Run Karen.
But that jinxes Karen, and she can't hit at all. She even strikes out.
How can Karen march with the Krushers in the big parade when she's nothing but a stikeout queen?