Season 2 - Episode Guide

Steve and a team of world class kayakers head to Kamchatka in the Russian far east, to take on the first descent of the Kronotsky River – through white- water so extreme that it has never before been attempted.

The team set out to paddle from source to sea, starting in the shadow of a still active volcano and ending at the Pacific Ocean – kayaking through an unspoilt wilderness packed with more brown bears than anywhere else on the planet.

Over 120 thousand years ago the Arabian desert was a pathway for the first human migrations out of Africa. On this expedition, Steve and the team start their journey at the ancient Nabataean city of Hegra, where secrets lie waiting to be uncovered.

Joining forces with Saudi Arabian geologists Mahmoud AlShanti and Hala Alwagdani, Steve and ropes expert Aldo Kane head down into an unexplored?volcanic underworld in search of the longest lava tube in Arabia. Geological evidence suggests that at least 400km of tunnels lie beneath the rocky lava fields?above –?subterranean passageways which could contain the bones and artefacts from ancient civilisations. Only 25km of these lava tubes have ever been unexplored… until now.

Steve and the team head to a remote region of Kyrgyzstan in search of snow leopards.

On this expedition, the team head to the Djangart valley, a remote region packed with precious minerals that mining companies have their sights firmly set on.

Teaming up with snow leopard conservation organization Snow Leopard Foundation, Steve and the team set out to find evidence of a breeding population of snow leopards. If they can find snow leopards living and breeding here, they hope to persuade the Kyrgyzstan government to turn the Djangart valley into a nature reserve.

Steve heads to the Moukalaba Doudou National Park in Gabon - he wants to discover whether this unexplored rainforest could be home to an undiscovered population of chimpanzees.

Steve joins forces with shark scientist Mauricio Hoyos to dive a remote volcanic island in the Eastern Pacific. Their goal is to discover where shark mothers give birth and help protect a new generation of these ocean giants.

Steve takes on four entirely new adventures to some of the most remote parts of the planet, including Saudi Arabia, Gabon and Mexico, in search of precious natural wonders. He unearths secrets of an ancient civilisation and discovers wildlife more at risk than ever before.