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Damien and Francois embark on a speleology expedition to discover the hidden secrets directly under our feet in the secret underground world of caves.

The vast, quiet plains of the Canadian prairies are home to some of the most productive ecosystems in North America thanks to a seemingly insignificant organsim - grass!

Glaciers are the guardians of history, and our adventurers try to learn from them with help from a glaciologist in the Lillooet Icefields.