Jason Charles, Firefighter, New York. Emergency responder in 9/11 attacks. Worried natural disaster may pollute the air like this again. Preparation: NYC apartment can be sealed off like a bunker. Waterbob for bathtub to store drinking water. Food stored: MRE, waterbob, ramen, other shelf canned goods. Cause of Doomsday: Volcano

Wilma Bryan, Missouri. She and her daughter are both diabetic and insulin dependent. Preparation: Diet must be low in carbohydrates, high in protein to avoid raising blood sugar. Live chickens kept to butcher. Insulin only last six months so she's still reliant on medical supplies. Nearby stream to keep insulin cold so it will not turn bad. Food stored: Chicken, beans, nuts, soup, pickled goods. Cause of Doomsday: Tornadoes

Wayne Martin, Consultant Engineer, Texas. Preparation: Canned goods in buckets of cat litter to increase life expectancy of the product. Cat food on reserve. No one will steal but can be consumed if needed. Homemade "Wayne's World" wine to be used to barter in lieu of money. Food stored: Campbell's soup, pinto beans, Wanye's World wine. Cause of Doomsday: Financial collapse caused by the Chinese.

Josh Wanter, City Council candidate, Pennsylvania. As an Orthodox Jew, he prep is kosher and he admits the food choices are uninspiring. Preparation: Mainly stocks kosher MREs. Matzos last for years. Torah says breaking kosher is acceptable if your life depends on it. Keeps a flock of rabbits in case of desperation. Children not allowed to name the rabbits because they're raised for dinner, not as pets. Food stored: Kosher MREs, matzos, rice, rabbits. Cause of Doomsday: Terrorist attacks.

Rick Austin, sustainable homesteader and author, Appalachian mountains. Health has greatly improved since adopting this prepping lifestyle. Preparation: "Plant once, harvest for a lifetime." Totally self-sufficient from his land. Stores a mix of fresh and preserved, keeps bees for honey, medicine. Food stored: Fruit and vegetables, beef from own livestock, milk and cheese, honey, nuts, smoked meats. Cause of Doomsday: Food system is about to fail.

John Major, seed business, Idaho. Concerned radioactive dirty bombs will be detonated in the United States. Preparation: Soil is one of the best defenses against radioactivity, buries a bank of over 1.5 million sprouting seeds. Forages and collects insects to cook, keeps bees for honey, medicine. Food stored: Sprouting seeds, crickets, meal worms, grasshoppers with parmesan cheese. Cause of Doomsday: Dirty bombs.

Kellene Bishop, self-sufficiency and self-defense educator, Utah. Preparation: Doesn't want to experience change in her diet so she constantly rotates her food stored. Likes to cook from scratch with real products. Preserves ingredients for longevity. Food stored: Waxed cheese, pickled vegetables, vacuum sealed meats, freeze dried foods, pasta. Cause of Doomsday: Financial collapse.