What on Earth? Season 2 Episode 1 - Finding Vietnam's Lost POWs

Airdate: 2016-Jan-26

Episode summary:

Desperate signs from lost veterans in Vietnam captured by satellite. A fleet of massive ships stranded in the middle of a vast desert. Strange walls stretching vast distances across Northern California. Just what on earth are they?

About What on Earth? series:

What on Earth? is a documentary series using satellite images of strange geological occurrences and man-made structures on Earth to examine such ma...Show more >