Chad's job as a bat boy becomes complicated as tries to follow his parents rules, helps his friend Abby with a problem, and finds a card in his collection that might help pinch hitter Sammy find the running speed that will keep him on the team.

Joe Stoshack lives for baseball. He knows everything there is to know about the game-except how to play well. His specialty is striking out. Stosh feels like a real loser, and when he takes a low-paying job cleaning a bunch of junk out of his neighbor's attic, he feels even worse-until he comes across a little piece of cardboard that takes his breath away. His heart is racing. His brain is racing. He can hardly believe his eyes. Stosh has stumbled...

When Pine City Porcupines' bat boy Chad breaks an important unofficial rule of baseball: Do not talk to the starting pitcher when he has a perfect game going, the team may lose the game unless Chad can find a baseball card to help break the superstition.

Joe Stoshack travels back to 1919, where he meets Shoeless Joe Jackson and tries to prevent the fixing of the World Series in which Jackon was wrongly implicated.

With his ability to travel through time using baseball cards and photographs, thirteen-year-old Joe and his mother go back to 1863 to ask Abner Doubleday whether he invented baseball, but instead find themselves in the middle of the Battle of Gettysburg.

With his ability to travel through time by using baseball cards, Joe goes back to 1947 to meet Jackie Robinson, turning into a black boy in the process. Joe Stoshack has really done it this time. When a pitcher insults his Polish heritage, Joe flings his bat and prompts an on-field brawl that ends in a two-team pileup. He's suspended from Little League ... indefinitely. At school, his teacher assigns an oral report for Black History Month. The topic?...