1. Kalapalo Wrestling

The competitors venture to the Brazilian jungle on a quest to wrestle with Kalapalo warriors at the Festival of Death, where wrestlers compete for their village's honor. First, however, they have to prove themselves worthy to compete — an ordeal that involves being scored with razor-sharp piranha teeth. Our athletes are trained to take part, but only a select few can secure a place on the village team.

2. Zulu Stick Fighting

In South Africa, the six men live in the traditional village of Nqekwane and take on the Zulus in the deadly sport of stick fighting, an event where bloodshed and death are never far away. The athletes have to go through initiation ceremonies and take magic potions to find the skill and courage to fight at a Zulu royal wedding.

3. Tarahumara Endurance Race

4. Sumi Kick Fighting

5. Mongolian Wrestling

6. Trobriand Cricket

7. Wolof Wrestling

8. Sepik Canoe Racing

Kyle's loyalties are tested when Chuck and Joe file a complaint against Mike. Meanwhile, Ryan is surprised when the puppy he and Kristen are dog-sitting seems to hate him.

9. Kraho Log Running

10. Andean Ice Race

11. Pencak Silat

12. Vanuatu Canoe Race