Steve is on a mission in search of the longest lava tube in Arabia.

Steve and a team of world-class kayakers head to Kamchatka to take on white-water in a bid to explore a wilderness packed with more brown bears than anywhere else.

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

Steve and the team head to remotest Kyrgyzstan in search of snow leopards - if the team can find evidence of the endangered big cat, they could protect the region.

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 takes on four entirely new adventures to remote parts of the planet - including Saudi Arabia, Gabon and Mexico - in search of precious natural wonders.