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2:42
Steve checks camera trackers and finds footage of wolf cubs and a first snow leopard.

4:55
Steve and team find evidence of ancient life inside the lava tube.

1:59
Steve sets up camp and goes to look for jungle creatures before he goes to bed.

2:13
Steve and team begin their first descent down the treacherous Nyanga River.

2:14
Steve and team make the first documented descent down the Kronotsky river.

2:08
Steve and team use a drone to determine their next course of action down the river.

5:16
Steve and team attempt to climb Al-Khuribah, the apex of the ancient Dadan Kingdom.

4:26
Steve free dives with a massive squadron of Mobula Rays in the Sea of Cortez.

2:30
Steve goes out to look for jungle predators at night.

4:10
Alessandra sets camera traps in search of chimpanzees but captures footage of an elephant.

3:04
Steve discusses the importance of tracking sharks with a shark expert.

4:49
Steve and team test their dive equipment on a dive with sharks.