An unrelenting shark turns a couple's dream vacation into a nightmare when they are stranded at sea and forced to fight for their lives.。Every day is a new challenge for Dr. Michelle Oakley, the only all-species vet for hundreds of miles in the Yukon. Whether wrestling bison, performing surgery on a bear or braving frozen landscapes to return a lynx to the wild, Dr. Oakley does whatever it takes to keep the animals safe and healthy.。