Relates how the colt Assault recovers from an accident that leaves him crippled and grows up to win the Triple Crown, "thoroughbred racing's highest achievement," in 1946.
Provides an overview of famous horses in history, including Paul Revere's horse, George Washington's horse Magnolia, Black Beauty, Mister Ed, and others.
Flavia and her friends go to Rome to celebrate the Festival of Jupiter at Senator Cornix's town house, where they befriend the young charioteer, Scopas, and quickly find themselves embroiled in a campaign to sabotage one of the rival racing factions.
Text and photographs present the history of thoroughbred horses, how they are trained to be some of the fastest horses in the world, the competitive sports in which they participate, and some well-known horses.