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.

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 works around the clock to round up a pack of rogue horses, solve a miniature horse’s medical mystery and give eight sled dog puppies their first exam.

This week, Dr. Oakley’s house calls consist of a string of scary visits that ultimately send two people to the hospital.

Dr. Michelle Oakley covers thousands of miles as she tends the Yukon's animal population; she treats a 300 pound yak and a golden eagle.

A baby boom has hit the Yukon Territory, and for Dr. Michelle Oakley that means helping a weak cow deliver an oversized calf, delivering puppies and treating a pregnant goat.

Dr. Oakley treats a sled dog with a face full of porcupine quills and a baby moose with life-threatening indigestion.

Dr. Oakley helps with the birthing season in Alaska, where she witnesses a rare reindeer delivery, nurses a baby moose back to health and neuters a wolverine.