What on Earth?

Season 2 Episode 1: Finding Vietnam's Lost POWs

Evidence of human activity is found in strange times and places, and a new perspective on a biological activity known since the nineteenth century.

Genre:

Documentary

Seasons:

12

Episodes:

131

Cast:

Steven Kearney, Andrew Gough

Quality:

HD

Duration:

44 min

First Air:

2015

Rating:

6.4