After recovering from being hit in the head during a baseball game, Stosh travels back in time to try to save Ray Chapman, a batter who was killed by a pitch in New York in 1920.

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.

"Miss Z, a mysterious billionaire and a collector of rare photographs, is sending her four recruits back in time on a mission to capture, for the first time, one of the most important moments in American history--Abraham Lincoln giving his famous Gettysburg address"--

When Stosh travels back in time to 1941 in hopes of preventing the Japanese attack on Pearl Harbor that brought the United States into World War II, he meets Ted Williams, one of the greatest hitters in baseball history. Includes notes about Williams' life and career.

Stosh travels back to 1969 to try to prevent the untimely death of Roberto Clemente, a legendary baseball player and humanitarian, but upon his return to the present, he meets his own great-grandson who takes him into the future, and what he finds there is more shocking than anything he has encountered in his travels to the past.

Luke, Julia, David, and Isabel are headed to the deck of the doomed Titanic. Their mission? Capture a shot of the sinking ship, then come right back. The only problem is, once they arrive aboard the ship, the four friends can't agree on what to do next. Should they try to save the passengers? Or maybe bring back a priceless book before it sinks with the ship? With real historical photographs to put young readers right in the action, plus back matter...

With their ability to travel through time using vintage baseball cards, Joe and his father have the opportunity to find out whether Babe Ruth really did call his shot when he hit that homerun in the third game of the 1932 World Series against the Chicago Cubs.