It's Christmas Eve, and the Five Little Monkeys are so excited, they can't sleep. They're sure that every little noise they hear is Santa, and not even Mama's and Grandpa's warnings can keep them from jumping out of bed again and again to look! Will those silly little monkeys find a way to get a glimpse of him and his sleigh before the night is over?
When babysitter Lulu takes the five little monkeys trick-or-treating, they decide to change costumes with their friends and try to fool Lulu and their mother.