The investigation takes off. In the Philippines, Karsten hunts for witnesses and explores the brutal world of illegal fishing and human trafficking.
Ken and Guillaume leave Moose Creek behind for a mission at the even more remote Arizona Creek, but their first clean-up reveals no gold.
Could the motive behind the killings involve drug trafficking? Karsten investigates the murky underworld of Mombasa and makes a major breakthrough.
The Hajj, the largest pilgrimage in the world and the fifth pillar of Islam, is a religious duty for every able-bodied Muslim. Follow five Chinese Muslims as they undertake this journey of a lifetime.
This is the coldest and windiest place on Earth and after years of planning, six research teams have come to Scott Base, New Zealand’s Antarctic Research Station, to study everything from the volcanos to migrating whales.
Klamath, CA: Tailed Frogs mating. This image is from America the Beautiful: Mighty Northwest.National Geographic/Owen Bissell