Froggy and his little sister Polly want a dog of their own, but Doggy proves harder to train than Froggy anticipated.

Aunt Amanda brings Lizzie a boxer puppy who chews on everything, and Lizzie tries to keep him from destroying her house while she works to find him a new owner.

When there are two Chihuahua puppies to foster, Charles and Lizzie each take one, and they compete against each other to see who can train their puppy best and find someone to adopt it first.