Just hours into the race, Alaska takes her first victim when a contestant is evacuated.

During a brutal introduction to Survivor Camp, racers must live off the land to keep racing.

A racer falls ill after a steep climb while another gets snared in ropes during a cliff rappel.

Alaska claims another victim when a racer falls in the rainforest, suffering a debilitating injury.

After a dangerous bear encounter and a fall down a cliff, Alaska sends another team home.

Bears force a team off track. A crucial choice could propel another to first place or over a cliff.

One team risks rations, braving the frigid waters to catch food while Alaska sends another packing.

Caught in a biblical storm, teams stare down hypothermia during a frigid night in the woods.

The final three teams compete in the brutal, exhilarating climactic push for the $500,000 prize.