Josefina's family is in Santa Fe to make a trade that will affect the future of their rancho. An American wagon train will arrive any day, and Josefina can't wait to get her first look at American traders and the things they sell. Before the wagon train even arrives, Josefina meets a scout named Patrick. Though his American manners seem strange to her, she can't help liking him. When Papa trusts Patrick with the family's trade, Josefina decides to trust him with a trade of her own. But Patrick leaves town without paying Papa or Josefina! It seems he's betrayed them both -- until, late one night, Josefina makes a surprising discovery. Can she use it to save the day?