Join explorers and scientists who climb into age-old human-carved caves in the Kingdom of Mustang.

In the legendary kingdom of Mustang, a remote corner of the Himalaya previously off-limits to outsiders, a team of explorers and scientists climbs for the first time into human-carved caves thousands of years old. They find priceless 14^th-century wall paintings, ancient human remains and a centuries-old hidden library of sacred texts that may reveal some secrets about Shangri-la.