When orphaned Annie Paxton and her brothers strike out on their own, they see an ad for the Pony Express that seems to answer their prayers: Wanted, it reads, Young, skinny fellows not over eighteen. Must be expert riders and willing to risk death daily. Orphans preferred. Without hesitation, Annie becomes a cook at Clearwater Ranch, a station along the Pony Express route, and the boys become Express messengers. Annie soon attracts the interest of two men, and is both flattered and baffled by their attention. One is a refined, dashing lieutenant. The other, a rugged ranch owner. When a routine Express mission goes awry, Annie must intervene. Racing on a moonlit adventure, she'll have to learn how to trust her instincts and follow her heart, even if she's conflicted about which way it's leading her.