Episode 1
Steve Backshall visits unexplored parts of the world. This time his team is kayaking in the Arctic - they face perilous sea ice and have a terrifying encounter with a polar bear.
Episode 2
Naturalist and explorer Steve Backshall leads a team on a mission to summit a remote and unclimbed mountain deep in Greenland’s Arctic wilderness.
Episode 3
Steve Backshall leads an elite cave diving team into the largest unexplored cave network on earth. Below a Mexican jungle, they are pushing further than anyone has before.
Episode 4
Steve Backshall is in Yucatan, Mexico, on the trail of the ancient Maya. His team of explorers uncover macabre and sinister secrets deep underground.
