Joe's dad gets in a car crash, and fearing he might die, tells Joe his inheritance: a Mickey Mantle rookie baseball card. He tells Joe to go back and prevent the terrible accident that ended Mantle's baseball career. However, Joe's cousin Samantha switches the Mantle card for a catcher of a women's league team, Dorothy Maguire. When he goes back in time he took the job for the mascot of the Milwaukee Chicks.