When Bev is recruited in present day to pitch for the boys' baseball team, she is in seventh heaven when her team could earn its way to the championship game. Standing between Bev and victory is her arch nemesis, Diane Dunkelman. She must come to terms once and for all with her rival, and learn how to follow her heart about the boy she likes. In baseball as in life, Bev discovers, she must be true to herself to win. Meanwhile, Ann, Mary, Maxine, and Judy are on the trail of a mysterious, reclusive friend from their social studies teacher's past who may have the secret to their time-traveling dilemma. Get ready to cheer for the Fifties Chix as their time-travel journey leads them on unexpected twists and turns toward victory in the fourth book of the series.