1. Episode 1

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. 4 January 2015. 60 min

Two-part documentary. Kate Humble joins a team of geologists at Tanna in the Vanuatu archipelago, where they travel right to the heart of one of the world's most active volcanoes.

2. Episode 2

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. 11 January 2015. 60 min

Two-part documentary. Kate Humble goes on an awe-inspiring adventure to Ambrym in Vanuatu, where she abseils into a volcano containing one of only five lava lakes on the planet.