The Time Spies get caught up in the Match of the Century, between the champion horse War Admiral and a little brown Thoroughbred named Seabiscuit. Hanging out in the barn before the race, the kids overhear a nosy reporter threatening to destroy Seabiscuit's chances. Can Mattie, Alex, and Sophie find a way to stop the scheme before the starting bell rings?

Read a list of other books in the series.