When Jack's human, Maggie, drops him off at his new dog school, Jack is introduced to the dogs of Barkley's. It isn't easy being the new pup at school, especially when jack chooses one of the bully's toys to chew on and befriends a cat. Though Jack fancies himself to be a Wonder Dog, he comes to realize that the truest special power is friendship.Author Biography: Marcia Thornton Jones and Debbie Dadey are the authors of the series The Adventures of the Bailey School Kids, The Bailey City Monsters and Triplet Trouble. Now they lend their talent to the adorable antics of the canine characters of Barkley's School for Dogs.

When Jack arrives at Barkley's School for Dogs, he notices trouble brewing when a puppy named Bubba begins hanging around with Sweetcakes who begins teaching Bubba mean tricks.

When the pupils at Barkley's School for Dogs get the chance to star in a dogfood commercial, Jack would do anything for the part, but it is canine bully Sweetcakes who gets the role, until Jack discovers the offer is not quite what it seems.

When chew toys start to disappear and doggie treats are missing from the schoolyard, the Barkley dogs are suspicious. Could it be Sweetcakes, the bully Doberman, playing her old tricks? Jack learns that the true culprit may have to do with an old legend of a ghost dog...

A snowstorm gives Barkley's School an unexpected snow day, and the dogs have never had so much fun playing. But when one of the dogs is caught in the blizzard, Jack and his friends will have to work together to save the day.

Floyd is forced to ear a big plastic collar after getting stitches, and Sweetcakes teases him unmercifully. Floyd is terribly depressed Jack just can't stand by and let Floyd suffer, so he and his doggie sidekicks teach Sweetcakes a lesson.

Woodrow tells the canine classmates about a treasure-digging dog who used to attend Barkley's School. Jack is sure there must be treasure in the yard He and his friends search for doggie-treat treasure and learn a lesson about teamwork along the way.

All the dogs' humans are invited to watch the Barkley's School blue-ribbon competition. Jack is determined to make his human, Maggie, proud. But sneaky Sweetcakes has other plans for the winner.

When the dogs meet Jingles, a white Eskimo dog who smells like peppermint and talks about the magic of Christmas, they are convinced that his owner must be Santa Claus.

The local vet is hanging around Barkley School, and the dogs aren't too thrilled. Blondie thinks that the doc is there to see Fred—it's more than puppy love for those two humans But when Tazz gets hurt, having a doctor nearby is the best thing for all the dogs at Barkley.