Andi and Natalie have enrolled their dogs, Buddy and jet, in dog-dancing classes! There they meet Shaun Carter, proud breeder of miniature dachshunds, who has just welcomed a litter of four new pups into the world.
Andi is thrilled when she gets to choose the name of her favorite! But when Koko is slower than the other dogs to recover from a regular check-up shot, Andi grows suspicious, and realizes that his behavior is more than just odd-Koko's been replaced with a nearly identical dog!
When the class hamster disappears from Andi's school, the Pet Finders have their hands full once again. Will they be able to crack both cases before either pet is harmed?