Doomsday Preppers is a reality TV series that airs on the National Geographic Channel. The program features various survivalists preparing for the end of civilization that might be caused by economic collapse, societal collapse, or whatever. The preppers usually stock ups food, various other supplies, firearms, etc., and fortify their homes. For Christians, I see holiness to be our best, needed defense against evil. It is our weapon as well as shield. Any preparation made without enlisting the Lord's help is already doomed.