Episode 1

A veteran K9 nicknamed "The Wonder Mutt" figures to be the favorite, but will he be taken out by the younger, hungrier competition? His challengers include a police dog with hundreds of narcotics arrests and a civilian trick dog who just might be the most talented tail-wagger in the whole field.

Episode 2

A third generation police K9, and a civilian underdog built for speed are among the pooches who face off in a competition that comes right down to the wire. Who will get the last woof?

Episode 3

A fur missile, a veteran K-9 named Murphy and a small civilian underdog compete.

Episode 4

Two civilian underdogs take on the professional pooches in an epic clash of K-9s, as a brash boxer and a peppy pit bull attempt to be leader of the pack

Episode 5

The youngest dog in the competition sets a fur-ious pace; the more experienced dogs must take matters into their own paws or a youngster will bring home all the biscuits.

Episode 6

Among the K9 combatants are a dog who once took down a crossbow-wielding creep, a pooch whose trainer is allergic to him, and a team with inspiration on their side. Who will emerge lick-torious?

Episode 7

It's raining cats and dogs, but the K-9 combatants show their gladiatorial spirit, battling through bad weather and tricky tunnels right down to the final seconds.

Episode 8

With some of the most decorated doggies ever to set paw on the K-9 combine, records may be broken.

Episode 9

The lineup raises burning questions such as if old can defeat young and if skill can beat experience.

Episode 10

A Doggle-wearing K-9 faces some tough competition including a Connecticut K-9 who's ready to declare war and cancer-surviving civilian underdog named Bruce.

Episode 11

Six winning K-9s and one champion underdog battle it out for $25,000 and the bragging rights for the ultimate title of "America's Top Dog."