Dr. Chris is back working to prevent polar bears from getting too close to the town of Churchill, Man. Meanwhile, Jackie and Heather struggle to x-ray an uncooperative harbour seal with a nasty cough.

It's intern vet Whitney's busiest day yet when she works with Dr. Charlene and Dr. Chris to remove tumours on two rescued grey wolves. Heather helps C-Jae with health checkups on nine rescued polar bears while the rest of the team attempt a tricky hoof trim on a reindeer with dangerous antlers.