When Mary-Ellen Lathrop decides to devote part of her senior year to Junior Achievement, Inc. she does so out of a vague curiosity about the business world. But her activities in the Junior Achievement Christmas-tree-stand project teach her as much about people as it does about commerce. In the course of her busy year, she establishes a new and sound relationship with her best beau, and through her understanding of capitalist principles is able to set a confused but gifted boy on a course of productivity. A warm and wholesome account of adolescent profit and loss.