Expedition

Borneo – Dark Shadow

Passport Episode 5 | 48m 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

Expires: 01/14/24

Rating: TV-PG

Problems Playing Video? | Closed Captioning