"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"--

Sent back in time to 79 AD, on a mission to photograph the eruption of Mount Vesuvius, the Flashback Four race to get their picture.

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.

"Joe "Stosh" Stoshack uses his power to time travel using baseball cards to go back to 1951, when Bobby Thomson hit the famous Shot Heard Round the World home run to win the National League pennant for the New York Giants"--

With his ability to travel through time using vintage baseball cards, Joe takes Flip with him to find out whether Satchel Paige really was the fastest pitcher ever.

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

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.

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.

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.