Overview

What if an extra-terrestrial force attacked Earth? What might that look like and how will the people of Earth respond? Consulting a cast of world-renowned scientists, survival experts and defense experts, National Geographic explores this frightening scenario. Experts reveal what could motivate alien invaders to attack Earth, and speculate on how the attack might play out, the strategy alien invaders might use, and the most effective ways for humans to respond.

Genres

Cast

James Lurie

Narrator (voice)

Seth Shostak

Self - SETI Institute

Nick Pope

Self - U.K. Ministry of Defense

Stephen Hawking

Self - Theoretical Physicist (archive footage)

Neil Strauss

Self - Author, Emergency

Carin Chea

Laboratory Scientist

Leandro DiMonriva

Scientist

Philip Hersh

News Correspondent

Matt Lasky

Survival Expert

Eric Raymond Lim

Resistance Fighter

Richard Miraan

Astronomer

Jose Rosete

Survivor