When Rex starts causing trouble at Dr. Blake's vet clinic, Kyle knows something has to change. He decides to take Rex to the dog park for training, where he makes a new friend with a problem pup of his own. Can the two boys work together to teach their dogs some manners before it's too late?
"I like this book because we have a problem pup that's just like Rex. I was glad Kyle could get Rex to behave at the end. I like reading about Kyle and his friends and their pets, and would like to read more of these books."