Veve McGuire feels left out and resentful that her best friend Connie Williams is a Brownie Scout along with five other girls from her class. Whenever the girls ask Veve to join, she says she isn't interested and acts as though being a Brownie is silly. Veve is impulsive and restless, frequently getting herself into scrapes. Connie does her best to watch out for Veve.

The Brownie Scout leader, Miss Gordon, announces that the Brownies will go to Snow Valley with her during the holidays. The girls are all happy, except Veve, since she is not a member. One of the other girls catches a bad cold, and Miss Gordon suggests that Veve go in her place as a substitute Brownie. Veve is thrilled, even though she still doesn't want to join the troop.

The Brownies have a wonderful time at the Gordon's home. They enjoy sledding and hiking and solve the mystery of what happened to Mrs. Gordon's cherished locket. They also help the poor Stone family have a happy Christmas. Finally, Veve decides that she want to be a Brownie after all, and is initiated just in time for Christmas. The Brownies look forward to many future adventures together