Meet Jeff Bushaw, a full-time prepper who fears the eruption of the Yellowstone super volcano and is ready to fly his family to safety. Allen and Franco are neighbors who are preparing for a breakdown of the world food system. They have each built their own aquaponic systems, gardens, and greenhouses to create a self-sustainable lifestyle. John Adrain is an inventor who fears a wide range of disasters. He focuses on security and has turned his estate into a technological fortress.