In this special documentary that inspired a two-season television series, scientists and other experts speculate about what the Earth, animal life, and plant life might be like if, suddenly, humanity no longer existed, as well as the effect humanity's disappearance might have on the artificial aspects of civilization.

Top Cast

Struan RodgerNarrator (voice)

John AndersonSelf

David BrinSelf

Bill BruningaSelf

Ron ChesserSelf

Dr. Howard OliverSelf