Dr. Michelle Oakley, a veterinarian in one of the most rugged environments on Earth.

Dr. Oakley and Sierra help all the animals affected by the devastating Australian wildfires, including kangaroos and koalas.

Dr. Oakley travels to a remote village to treat the local dogs and investigates what’s ailing reindeer at the Alaska Wildlife Conservation Center.

Dr. Oakley takes to the skies to chase some of the Yukon's toughest wild horses, and a kitten's unexpected pregnancy scare could force a tough medical decision.

Dr. Oakley and her daughters rush to save a canine who’s ingested pills, then team up with Dr. Doyle to operate on a horse with a nasty leg infection.

Dr. Oakley fights to save a newborn reindeer calf and performs a miraculous surgery on a canine burn victim.

Dr. Oakley helps a horse with a strange lump and deals with a bull that's losing weight.

Dr. Oakley travels to Prince Edward Island to tackle a bison inbreeding problem, and then helps a horse with a fractured hoof.

Dr. Oakley's wild cow chase; Sierra's Yukon chops.

Dr. Oakley travels to Sweden to learn about bears.

The future of a reindeer herd is in Dr. Oakley's hands.

Dr. Oakley treats walking and breathing issues for a horse, tries to save a fox in peril, and performs surgery on a puppy.

Dr. Oakley preg-checks twelve cattle then races to diagnose a sick German Shepherd, while Sierra ponders if she’ll follow in her mother’s footsteps.

Dr. Oakley investigates a cat's seizures; gets hands on with a reindeer’s antler; and tries to remove an odd lump from a French bulldog.

Dr. Oakley preg checks rabbits, helps a sore duck, and relieves a reindeer.

Dr. Oakley treats a chunky chicken and a calf that was attacked by a bear.

In Alaska’s backcountry, Dr. Oakley has to castrate a Himalayan yak, sedate a sick lynx and, unexpectedly, help a hairless cat with a dangerous injury.

An emergency cesarean section keeps Dr. Oakley up all night.

Dr Oakley treats a Sitka deer with a recurring limp, an alpaca-llama cross with an attitude, and guards the family dog from a wandering hound.

Dr Oakley treats a moose with an eye injury, a rescued pig, and a dog with a porcupine vendetta.

Dr. Oakley treats an enormous bull and her own family's pet pug.

In the Yukon, Dr. Oakley helps a young caribou with fast-growing, giant warts on his face and a mountain goat with a life-threateningly mangled foot.

Dr. Oakley goes to a remote island for a calf castration, but the routine surgery quickly turns dangerous.

Dr. Oakley traps a snarling wolverine to learn more about her ferocious species, but this girl is all bite.

Dr. Oakley races the clock wrangling bison.