NATGEO TV

Authenticating with
provider

Sign Out

Are you sure you want to Sign Out of your provider account?

Unlock full episodes using your participating TV provider subscription.

ActivateLearn More

You are signed in with your provider account and can watch any available full episodes.

Sign Out from providerLearn More

0

Check local listings

People Become Animals

The possibility of World War III is a major concern for many preppers, including former Marine Alex Dunbar, who is training a private army of German Shepherd attack dogs in San Luis, Colorado. In the woods of East Appalachia, Brenda McSwigan fears that a vicious mutating virus will lead to a pandemic that will overwhelm hospitals and leave the rest of the country in chaos. Another prepper, Grace McLeod, secures her 3,500 square-foot fortress before an economic collapse.