We meet four Americans who give their all when it comes to preparedness. Real estate developer Larry Hall is creating luxury survival condos in an old missile silo. Coloradan Riley Cook is readying his family to live in a high-altitude bunker. Michael Patrick Douglas is training his children in primitive survival skills. Becky Brown is taking sharpshooting lessons with a sniper in order to prepare herself for a government takeover of Salt Lake City. ➡ Subscribe: http://bit.ly/NatGeoSubscribe ➡ Get more Nat Geo Full Episodes:    • National Geographic Full Episodes   ➡ Get more Nat Geo Wild Full Episodes: https://www.youtube.com/watch?v=qAG2SkTPltw And check out more National Geographic series and specials here: ➡ Disney Plus: https://www.disneyplus.com/ ➡ Hulu: https://www.hulu.com/welcome ➡ NGTV app: https://www.nationalgeographic.com/tv/ ➡ ABC app: https://abc.com/ #FullEpisode #DoomsdayPreppers #NationalGeographic Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta TikTok: http://www.tiktok.com/@natgeo Tenor: http://on.natgeo.com/31b3Koc About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Friends Can Become Enemies (Full Episode) | Doomsday Preppers https://www.youtube.com/watch?v=sCxWutIeGnw National Geographic null