Eliza Carter loves working for her father during the summer holidays. She drives her own team of horses, led by her special Conestoga horse, Clipper, hauling heavy wagons full of grain. But life changes dramatically when tensions in the new colony begin to rise and her twin brother joins local farmers in armed resistance against their British rulers. Suddenly she finds herself examining her beliefs and loyalties. Where will she stand when national resentment boils over into revolution? And will she come to her brother's rescue when he needs her?

Jacquetta May Logan is visiting her relatives when the Union army commandeers her family's plantation, forcing her parents to flee. Alone in enemy territory, Jacquetta has only her beloved horse, a beautiful bay named Chance, for company. With the help of a brave slave girl, Jacquetta devises a daring plan to rescue her family's Morgan horses and lead them to safety across the Mississippi.

Erika Nagys and her family have come to California from Hungary in search of gold. When they cannot pay the rent, Erika must go and work for their nasty landlord, the rancher Hart Latham. Erika forms a special bond with an injured filly named Arany, which she nurses back to health. When Arany escapes from the corral, Erika finds the horse—and gold—in Blackwater Creek. But will newfound riches solve her family's problems?

When her father dies suddenly, 15-year-old Lexie McDonald is left an orphan in the Wyoming territory. Her brother, Callum, is on the run, accused of a crime he didn"t commit, and plans are in place to send Lexie to live with an aunt in New York City. Rather than be separated from her beloved horse Cougar, Lexie disguises herself as a boy and sets out along the dangerous Pony Express trail to find Callum and clear his name.