Cousins Kate and Mike are spending the Fourth of July in Philadelphia and they get to go to a Philadelphia Phillies baseball game and meet the famous mascot Phillie the Phanatic! But strange things have been happening behind the scenes at the field and it looks like someone is trying to sabotage the team into losing. The blame is put on Phillie Phanatic, but the kids don't think that it's him. . . will they be able to clear his name?
