When the boys' favorite umpire Hal Mann is barred from officiating, Kelly and Midge decide to take a stand. Risking disqualification and disgrace, the boys attempt to force the league to reconsider its decision.
As the situation becomes desperate the boys learn the truth behind their friend's refusal to take the exam. The Mann is only convinced to change his mind when he realizes what else is at stake.
(From the Middle-School Real-Life Stories shelf.)