MADISON IS NOT your average 12-year-old girl from Michigan in 1980. She doesn't use lipgloss, but she loves to play sports, and joins baseball for the summer-the first girl in Southern Michigan to play on a boys' team. The press call her a star and a trailblazer, but Madison just wants to play ball. Who knew it would be so much pressure? Crowds flock to the games. Her team will win the championship-if she can keep up her pitching streak. Meanwhile, she's got a crush on a fellow player, her best friend abandons her for the popular girls, the "O" on her Hinton's uniform forms a bulls-eye over her left breast, and the boy she punched on the last day of school plans to bean her in the championship game.