Doomsday Preppers - Season 4 Episode 4 Back To The Dark Ages

Chuck Vessey fears that an electromagnetic pulse will take out the power grid near his Texas home. He's concealing his goods in intricate spots around his house and building a wind turbine to generate electricity. Lisa Roulette preps for global climate change and teaches her sons the ways of living off the land. Tom and Beth Tailer prepare their land and community in rural Vermont for massive oil shortages by engineering a seemingly indestructible eco-dome shelter.