Mudders' catcher Rudy Calhoun is having a bad season behind the plate until, at a yard sale, he buys a used catcher's mask that greatly improves his playing.
Bus Mercer, shortstop for the Peach Street Mudders, wants desperately to be picked for the county all-star team, but he breaks his parents' rules for riding his new bike, and feelings of guilt affect his game.
Contains a brief history of baseball, how the sport is played, the playing positions, how and where to join a team, the role of the coach, and where to get more information about the sport.
Discusses the relative merits and importance of various defensive positions in baseball, including first base, shortstop, and center field, and celebrates great defensive players in the history of the sport.