Bellow is an Anatolian shepherd that works the high plains of Namibia to protect a flock from cheetahs, and Nipper is a RCA mascot whose showbiz career helps pay the bills at the Dawn Animal...

Mitch Seavey and his lead dog Dolphin tackle a three day race in Northern Minnesota.

Beau is a dalmation in training to become a therapy dog for a seniors' residence; Dar is a German shepherd who works with the Texas department of Insurance; and Jack flies through the air in a...

Eddie, a Terrier mix, works as a therapy dog in Asia; Velino, a Maremma, protects a flock of sheep; and Sir Lancelot donates blood.

Five-year-old Huntaway Steam herds deer on a farm in New Zealand; a Great Pyrenees guards goats in California, and a Dutch shepard helps the Secret Service weed out counterfeit currency.

A greyhound is learning to be a pet after losing his job as a racing dog. Endal, a young golden labrador helped tranform his master's life and find the hope he had once lost.

Gracie finds herself competing to be the "Greyhound" for Greyhound Bus Lines advertising. Tiger guards 1,500 sheeps against bear attacks in Northern British Columbia, and a groomed English sheep...

We'll meet a basset hound that competes in agility trials; a pug that visits hospital patients; and a Border collie that supervises its offspring's training as a stable hand.

We'll meet Beauty, a greyhound-pitbull cross that detects fumes and chemicals for its owner; Cinder, a kelpie that herds sheep in Tallahassee; and Blaze, a Lab training to detect arson.

We'll meet Jassel a guide dog; a Cardigan Corgi who herds sheep; and a Lab who competes in an indoor dock jumping competition.

Petro is an American German shepherd trained to locate disaster victims in rubble, and Mel is a champion Canadian poodle that takes us inside the business of dog shows, as he competes for top...

A drug dealer's dog that was rescued by the police, now catches drug dealers on the Mexico/Texas border; Harvey turns a one-day visit to a seniors' home into a full-time job; and Tattie, a border...

Zelda is a bulldog that models for greeting cards, magnets and books; Azili is a guard dog that chases foxes, vultures and hawks; and Amy is a guide dog for blind dogs.

Cooper, a Labrador, is a scent detective for homicides; Wasabe, a Rhodesian Ridgeback, helps her owner with a mental illness; Frito, a Jack Russell Terrier, competes in the hurdles.

Keno is a Labrador retriever who serves as an avalanche-rescue dog; Mentor is a personal assistant to an amputee; and Prince is a Beagle who works at the Auckland International Airport as a bio-...

Willie is a golden retriever who can predict when it's owner is going to have an epileptic seizure, and Rope is a champion cattle dog who herds sheep in Pincher Creek, Alberta.

Features Tilly, a border collie who investigates fires; Murphy is a golden retriever assists with physical therapy for children who learn to walk; and a six-month-old puppy becomes a bakery...

Moby, a lifeguard aboard a ship at sea; Morgan, a poodle that aids its narcoleptic owner; and Barney, a springer spaniel trained in drug detection.

Features circus star Nyack; police dog Cinder; and Clancy, a Labrador retriever that detects mercury.

A labrador named Maggie helps a seven-year-old autistic boy break out of his isolation, and A.J., a four-legged sleuth searches for lost pets in Santa Cruz, California.

A labrador in Montreal is helping to bring criminals to justice, and we'll meet Corky, a guide dog in New York.

A Jack Russell terrier plays Mom to orphaned cheetah and lion cubs; Barkely takes risks as he trains for search and rescue missions; and Rookie works at Mirabel airport sniffing for contraband...

Part-Ex, a Jack Russell terrier that is an extreme-sports champ; Bingo, a golden retriever training to be a service dog; and Morgan, a hired hotel companion.

Zoro, a German shepherd, works alongside a conservation officer; Suzie Q, a dalmation, assists an autistic child; Sven, plays the piano, guitar, and electric bass.

We'll meet a police dog from Connecticut who twice saved the life of his partner. Honey, a cocker spaniel is part of an innovative rehab program in which inmates train service dogs for work in the...

Kavik, a wolf-husky is about to undertake the lead role in a TV production in Vancouver. We'll meet Mas, a water rescue dog employed by the Italian Coast Guard.

Ginny and her owner rescue injured or abandoned cats in New York City; Basil looks after 8,000 merino sheep in the outback; and Freddie, a great dane is employed as a walking billboard.

Teabag, a rescued greyhound-whippet cross, joins the Rockwood Animals Dog Display team, but must first leap through a ring of fire; Hearing dogs Harris and Barack undergo a certification test; and...

Dakota, a pitbull, performs search and rescues; Orca, a golden retriever, aids a wheelchair-bound student; and Target, a Brittany spaniel, surveys bird populations.

Sarcelle is a guide dog to a 14-year-old boy with Spina Bifida, and Sweep is an English border collie that herds sheep.

Laurie Seamark and her dog Dani work at Cedars Sinai Hospital visiting children with cancer, and King is a German shepherd who sniffs out land mines in the former Yugoslavia.

Rowdy is the lead star of the TV series "100 Deeds for Eddie McDowd"; Wizard works as a waiter and a service dog for a restaurant owner who's in a wheelchair; and Rio, a Portuguese water dog,...