But Jason's got a plan to turn his luck around. He's found a sponsor and a couple of good key players. Now all he needs is a great coach. That's where school custodian Mack Henry comes in. Mr. Henry is perfect for the job: he knows a lot about baseball - and he knows exactly what a kid should do to improve his game. Jason's also noticed an interesting coincidence: back when black players were excluded from the majors, a guy named Buck McHenry was one of the greatest pitchers in the Negro Leagues. Mack Henry... Buck McHenry. Is it possible? Could Mr. Henry be the legendary baseball player?