Ten new participants return to the History Channel's #1 summer survival series. In Big River, Labrador, the participants face the stalking predator, the Polar bear.

As hunger rapidly sets in, the remaining participants rush to get familiar with the land and do whatever it takes to secure food; one survivalist thinks outside the box for dinner; one participant struggles and makes a costly mistake.

As Labrador's winter draws near, the participants split their time between building permanent shelters and getting food; many participants struggle; one allows an opportunity to slip through their fingers; one braces for a deadly encounter.

The participants continue to look for new ways to hunt, but also to preserve their food sources; one survivalist leans heavily on a taxing shelter build, while another pauses their own work for some much needed sustenance.

As the participants close in on the first thirty days, the lack of food and the desire to go home grows ever stronger in Labrador the competitors continue to make each opportunity for food count; the need for preservation has one getting creative.

As some participants find success hunting, the prospects of a long stay increase; one participant makes an unexpected discovery; a survivalist faces a looming threat that may push them over the edge.

As resilience and strength are put to the ultimate test, the remaining participants look to the past for answers; one survivalist takes a dangerous fall; another suffers pains that seems to only get disastrously worse.

As the river begins its freeze, the participants suffer major setbacks; one survivalist doubles down on a daring strategy; another reaches their limit.

A fierce snow storm wreaks havoc on the remaining survivalists; one participant attempts to warm their shelter, while another struggles with their health as the weather piles on.

The remaining three participants continue to battle Labrador's harsh snowstorms and below-freezing temperatures. As their minds and bodies are pushed to the limit, they struggle more than ever before.