When polar bear Baffin needs an emergency root canal, Dr. Chris and the team call in veterinary dental expert Dr. O'Morrow, who races to finish the surgery before the anesthesia wears off.
The Polar Bear Alert Team releases a bear back into the wild only to find another bear dangerously close to town. Meanwhile, the veterinary team removes a cancerous tumour from grey wolf Onyx.
Snow leopard Batu suddenly stops breathing while Dr. Andrea performs surgery. In Yukon, an injured baby lynx is reunited with its family with the help of Dr. Chris and new intern Dr. Shannon.
Dr. Whitney assesses rescued harbour seals with new intern vet Dr. Shannon at The Alaska SeaLife Center. At the Conservancy, tensions rise as a sandhill crane goes into distress while under sedation.
Intern vet Dr. Shannon participates in her first surgery at Assiniboine Park Conservancy (APC) on an endangered snow leopard. New Polar Bear Alert officer, Chantal, jumps into action to chase a polar bear out of town with the help of a helicopter.
Dr. Chris and the team perform emergency dental surgery on polar bear, Aurora. Barkley the bison has a broken horn, and an orphaned otter pup gets much-needed attention.
Aging lynx Bizhiw is behaving abnormally due to potential kidney failure. At Alaska SeaLife Center, Dr. Whitney checks in on their rescued sea lions.
Dr. Chris travels to the Cochrane Polar Bear Habitat to treat a polar bear's injured leg. Intern vet Dr. Shannon discovers a big problem while conducting a routine hoof trim on thinhorned sheep.
Dr. Chris must deal with reindeer bullies to keep harmony in the herd. With ice finally forming on Hudson Bay as polar bear season wraps up, the Alert team releases eight bears back into the wild.
The new leaders of the Polar Bear Alert team intercept a polar bear mom and her two cubs, helicopter-lifting them to safety. Dr. Chris rushes to treat and release an injured great horned owl.
