It's New Year's Eve, and The Saddle Club are baby-sitting so that Max and Deborah Regnery can have a night off. Lisa, Carole, and Stevie think it will be a peaceful evening, full of Monopoly, New Year's resolutions, and talking past midnight.
They didn't count on baby Maxi. She's cute. She's adorable. But she isn't ready to go to bed. The Saddle Club have to forget their plans and spend the evening trying to tire Maxi out. But when a late-night phone call sends the three friends to the aid of a neighboring stable's horses, they have a new problem: What about Maxi? Looks like she's about to get her first riding lesson from The Saddle Club!