In this all rescue dog episode, a Bulldog/Pitbull mix that was rehomed five times, an Australian cattle dog with two titanium knees, a Pitbull that went from police K9 to farm dog, Top Dog's first ever Siberian husky and a rookie K9 cop are all ready to prove that a pound puppy can become a Top Dog.

The season's Top Dog winners are back to see if they have what it takes to make it to the winner circle once again. Who will have the speed, skills and smarts to bring home the $20,000 prize and the ultimate title of America's Top Dog?