When Lizzie meets a mischievous young pug named Pugsley while working at her aunt's day care center for dogs, she steps in to train Pugsley so that he can get a good owner

Welcome to the Puppy Place--where every puppy finds a home! It seems like it's going to be just another normal Peterson family trip for haircuts - that is until Charles meets Princess, a spoiled but irresistible Yorkie pup. She belongs to one of the stylists but Princess's owner is moving and can't take the puppy with her. Charles volunteers to care for Princess until they find her a new home. But it doesn't take long for the Petersons to get tired...

Lizzie and Charles Peterson love dogs, especially puppies. So it is perfect that the Petersons are a foster family for young dogs. They will adopt a pet of their own one day, but now they are happy to help puppies find just the right home. The Petersons' newest foster puppy is Rascal. He is a Jack Russell terrier, and his name fits him well. He may be small, but he can cause big trouble. Lizzie and Charles are in for a challenge. Will they be able...

While rehearsing for a play, Charles meets Cooper, a corgi with a whole lot of personality. Charles only feels comfortable onstage with Cooper there with him. Can Charles find this star of a pup a home?

When Liberty, a golden retriever puppy, runs away from her family during a beach fireworks display, the Petersons try to bring her home.

Lizzie's Aunt Amanda returns from vacation in Puerto Rico with a street dog with an injured leg, and Lizzie and her friends decide to organize a Dog-A-Thon to raise money to pay for the puppy's operation.