Watch Christine put her new dog sledding skills to the test by entering the Hilmar Nois wilderness dog race. Meanwhile, Mary Ann makes a misstep when she hires a new chef, and tour guide Mats is less than thrilled about large polar bear tracks.

After the Arctic's warmest winter ever recorded, the residents of Svalbard are witnessing the effects. Professor Chris's students measure a glacier, Alex takes a tour to a Russian mining settlement, and Lara spends a day cleaning up after 200 dogs.

Christine and Grace face their biggest test to date as they head to a remote cabin in the wilderness. Ben wrestles to recover after a fire ruins his permaculture business, and Wiggo scares tourists with grizzly tales of death and danger.