Four former Army Rangers have been prepping for an eventual apocalyptic event for more than two years in the mountains of Tennessee. The four have made a wager on what the event would be, an economic collapse, a worldwide pandemic, a killer asteroid, or the eruption of a caldera in Yellowstone National Park. Nothing the men saw in the horrors of battle in Afghanistan or Iraq could begin to compare to the actual apocalyptic event that happens in their own backyard. The pure devastation and chaos caused by the event is unparalleled, and only the strongest will survive. Would you be able to survive?