Meet four former Marines who believe that they have what it takes to survive any doomsday scenario. Joel, Mark, Mike and Jimmy own Forge Survival Supply; their mission, use what they have on hand to teach and test their clients' skills. In a remote area of Colorado, Mike and Mark meet a couple who are serious preppers. They want to step up their game, but the guys worry their open land and young children could interfere. The Marines will put them to the ultimate test with a simulation attack.

Owners Mark and Jimmy head to New York to meet Jay and Daniel for a consultation to test their survival skills. Jay and Daniel are worried about how to get out of New York in an emergency, and rightfully so. With 8.2 million inhabitants and only a few ways in and out, an emergency situation in the Big Apple is no picnic. Back at the survival store in Colorado, Joel and Mike meet Theo, a prepper who's worried about nature wreaking havoc on Earth.