Twelve-year-old Barney has a plan to beat the Christmas rush and buy the entire stock of the most sought-after gift, the Crabby Mousie doll, the night before they go on sale so that he can resell them and be able to afford the top item on his Christmas wish list! But things don't go exactly as planned. He and his friends run into some issues when it turns out they're not the only ones with the idea.