Before we judge whether or not the people on this show are crazy, let's just remember that this show is like any other documentary, it explores a culture or a belief system completely foreign to our own.
Doomsday Preppers gives us a telescope into the lives of people who think the world's end is right round the corner, whether it be from an oil shortage, a giant earthquake, or the world spinning upside-down. While the apocalypse theories vary in their plausibility, what is certain is that these people BELIEVE it will happen very soon. And this makes for a very interesting show.
Families literally dedicate their lives to building defenses and stocking up on food supplies for when civilisation comes to an end. Whether its a legitimate fear or just a desire for a new life, you can't get past the slightly romantic notion of being the only people equipped to fighting off hordes of starving civilians with your homemade fortress. However the entire notion that you live your life to prepare for the offchance that the world ends is completely ridiculous.
These people give up the majority of their time and money to dealing with an apocalypse that almost definitely won't happen. But who are we to judge, whatever helps them sleep at night.
And examining these people makes for a very interesting show.
