Expedition

Episode 5 Preview | Borneo – Dark Shadow

Preview: Episode 5 | 30s Video has closed captioning.

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.

Aired: 02/12/20

Rating: TV-PG

Problems Playing Video? | Closed Captioning

See All Extras
See All Episodes
Meet Steve Backshall

Q&A

Meet Steve Backshall

Steve Backshall takes PBS behind his adventures, explains how the expeditions are chosen, and explores our role in protecting these magnificent locations.

Read More