“Doomsday Preppers” is back on NatGeo Thursday (July 24), with a refresher episode titled “Back to Basics” followed by new episode, “To Fail is to Die.” Check out the above preview video of the Season 4 premiere.

In “To Fail is to Die,” we meet Montana resident Jimi Falcon, who is prepping for a potential World War III; Cindy Stewart, who preps for a foreign nuclear attack by using her taxidermy skills to disguise IEDS; and Rod Godfrey, who has a military-style command and control center in his home.

“Doomsday Preppers” Season 4 airs Thursdays at 9 p.m. ET/PT on NatGeo.