Cleo, a tiny rat terrier puppy, is in for a big surprise when Anne adopts her. she meets Mowgli, a large Dalmatian. Cleo is shocked and upset, and Mowgli isn’t happy either. Mowgli has been Anne’s baby, and Cleo wants to be Anne’s little princess. They want to be Anne’s only dog! They try to get each other in trouble to force Anne to choose her favorite. Anne doesn’t know what to do. It seems like Mowgli and Cleo will never become best friends.
One day, Anne surprises Mowgli and Cleo with a trip to her aunt’s farm. Mowgli and Cleo’s adventure starts when they meet two horses, Tanner and Filomena.
Tanner thinks the old run-down barn is haunted, and suddenly Mowgli and Cleo are off on their first adventure! Is the barn really haunted? And the haunted barn isn’t the only adventure they have.