As they venture deeper into their surroundings, the nine remaining survivalists realize that this terrain is unlike anything they’ve ever experienced. One participant suffers a serious injury.

The remaining participants dig in for the long haul as they begin building their shelters. While some flourish, others fail and one is threatened by an unwanted visitor in the night.

A lack of food forces the remaining participants to get creative. One survivalist devises an ingenious method for getting protein while another battles Patagonia’s wiliest predator.

The remaining participants struggle to adapt to life in Patagonia. One survivor comes face to face with a stealth cat, and another takes on a major build project. As the days go by, one participant tries a novel strategy to outlast everyone else.

Winter arrives in full force, and the remaining survivors must deal with rapidly deteriorating conditions. The lack of protein pushes some to new levels of depletion, and the pull to see family is more than some can bear.

The remaining survivalists push themselves to their physical limits as fish becomes scarce. But one participant takes it too far, reaching the breaking point and risking organ failure.

The remaining participants, short on food, risk death in their attempt to triumph. Only one survivalist will be able to endure the wilds of Patagonia and take home the $500,000 prize.

As their teammates attempt to set up camp, the hikers find that Vancouver Island's terrain is even more punishing when on the move. The island beats one pair into submission, while another grapples with a devastating accident.

On Vancouver Island, a seriously injured participant weighs the risks of seeking medical help and sacrificing his shot at $500,000. Danger awaits all participants as predators continue to stalk the island’s newest inhabitants.

Desperation sinks in as the hikers struggle to make the final push to their teammates. Exhaustion leads one participant straight into the path of a predator, and into a dangerous confrontation.

Now that most teams are reunited, they dive into the difficult task of surviving together and feeding two people. Meanwhile, the final hiker faces a brutal mountain climb that could dash his hopes of ever making it to camp.

As Vancouver Island is pummeled by torrential rains, the remaining teams scramble to avoid freezing flood waters. One team attempts a massive construction project that could be their key to survival, while another must choose between betraying family and tapping out.

The three remaining teams scramble for a long term advantage. One pair runs themselves ragged with an elaborate shelter build, while another hazards the freezing Pacific waters on their own small craft.

After nearly a month on Vancouver Island, the three remaining teams face existential threats at every turn. One participant is forced to fight a raging fire, while rising tensions threaten to end another partnership.

As freezing temperatures punish Vancouver Island, the remaining pairs all face game-changing scenarios. One participant is hit with a crippling illness, while another's temper drives a wedge between him and his teammate.

As time presses on and temperatures drop, the final teams grapple with a strong desire to tap out; however, the $500,000 prize is hard to give up on, and the participants push themselves until one reaches the breaking point.

Ten new participants last 100 days in the Arctic to win $1 million, and they must overcome the first hurdle,which includes facing a variety of predators.

In order to endure the Arctic for 100 days, the participants start building shelters that can make it for the long haul, turning their attention to procuring food and inadvertently drawing the attention of dangerous predators.

As they enter the second week of the competition, the participants focus on securing a food source that can last them 100 days. Many focus on fishing, another puts himself in a dangerous position to keep his food safe -- with disastrous consequences.

Participants begin successfully procuring food but still find themselves vulnerable to the Arctic's many dangers. A sudden illness attacks one participant, while another is tormented by a tiny invader.

Faced with choppy waters and brazen predators, the participants must shift strategies or starve. One sets his sights on big game.

After some of the participants are raided by predators, they scramble to protect their hard-won food. Winter moves in, bringing with it new opportunities for those who are prepared, and new threats for those who aren't.

Local predators continue harassing the participants and they must adapt and innovate if they hope to survive. One is forced to make a hard decision when an unexpected catch turns up.

One survivalist rushes to prevent their shot at a million dollars from going up in smoke. Another struggles to complete their shelter in time for winter, while another must defend their territory from an unwelcome visitor.

Icy rocks and unpredictable waters force the remaining participants to decide if their desperate need for fat is worth taking dangerous risks. One participant is faced with a deadly predator threat and braces to fight for his life.