According to some people, 2012 is the year the world will come to an end.

Some theories say the end will come with a bang on Dec. 21, 2012 as foretold by the Mayans and other ancient civilizations.

Others believe it could happen any day with the collapse of world governments or maybe even a nuclear terrorist attack.

Of course there is the possibility nothing will happen and life as we know it will keep chugging along.

Whatever you may believe there are some people who are quietly preparing for the worst case scenario, just in case.

"In the end, you're the one that's got to survive. You're the one that has to have the fortitude and say, 'I'm going to live through this thing and I'm going to do whatever it takes,'" said Paul Range, a self described "prepper."

"The old term survivalist I think is kind of cliché. There are people out there living in bunkers in Arkansas that I would call true survivalists. I'm not one of those," Range said. "I'm not afraid of the sun coming up every morning or going down in the evening or that the Feds are going to bust us or whatever. We just live a little bit different lifestyle."

Four years ago Range and his wife Gloria bought a 52-acre piece of land in rural Wilson County and started building their doomsday compound.

The home is built out of old shipping containers and is designed to be easily defended and allows Range and his family to be more self reliant.

"This entire facility is based on sustainable agriculture and going further than that we have a sustainable structure. We are able to provide our own power, provide our own water and provide our own food," Range said. "We're not there yet. It wouldn't take very long to get there and the reason we're not there is that at this point it doesn't pay us to flip completely over to a totally self sustainable lifestyle."

The home is still hooked up to electrical grid but can be removed at a moments notice and be powered by a combination of wind, solar and power generators.

Rainwater is collected and stored in a 3,800 gallon tank that will provide clean drinking water, a key necessity for survival.

"Without water on the third day you're making decisions that will actually kill you," Range said.

For food the Range's have a couple of options. There are goats, chickens, hogs, ducks and geese on the farm.

Vegetables are grown hydroponically with recycled water or on land set aside for farming.

The compound also has a large stockpile of food that can support up to 20 people for 10 years.

Range said he didn't just jump on the 2012 doomsday bandwagon. He's been a prepper most of his life.

He said it all started in the 1960s when he was a teenager living with the threat of nuclear war.

He remembered being put in charge of finding shelter for his family during the Cuban Missile Crisis.

He found a cave where they planned to go with supplies to avoid the radioactive fallout.

Range learned to be even more prepared and self reliant when he joined the special forces.

"One of the things they really stressed was being self reliant," Range said. "In other words, not depending on anyone else for your survival but you."

Range said he didn't take his prepping to an extreme level until about ten years ago. He decided to ramp things up after seeing news footage of empty store shelves during a blizzard.

"They asked the store manager, 'How long did it take them to empty your store?' and he goes, 'Oh, about 2 hours," Range recalled. "That was when the light bulb went off and I went oh my goodness."

Range said most grocery stores only have a 3 day supply of food on hand. That supply is quickly depleted during an emergency and it could take awhile for it to be restocked.