Steve Backshall sits in a boat in Borneo.

Preview: Episode 5 – Borneo – Dark Shadow

Follow Steve Backshall as he drops down a sinkhole to explore a series of underground Bornean caves threatened by deforestation and limestone quarrying. The journey may lead to the potential to explore other undiscovered subterranean worlds.

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Mexico - Maya Underworld

Return to Mexico, where Steve Backshall explores a honeycomb of subterranean Mexican caves that the ancient Maya believed were a portal to a terrifying underworld. In a dark and flooded cave, Steve finds incredible never-before-seen artifacts.

  • 2020-08-11T04:00:00-07:00
    KCET-HD

Suriname - Ghost River

Join Steve Backshall in a region of Suriname that's so remote, it could conceal undiscovered natural wonders. He and his team travel deep into the jungle to kayak an unnamed river. The journey results in a surprise beyond their wildest dreams.

  • 2020-08-12T04:00:00-07:00
    KCET-HD

Oman - Desert Fortress

Visit the remote and impenetrable Dhofar Mountains in Oman, where Steve Backshall hopes to become the first to climb unexplored cliffs. Along the way, he encounters one of the rarest animals on Earth.

  • 2020-08-17T04:00:00-07:00
    KCET-HD