Doomsday Preppers was an American reality television series that aired on the National Geographic Channel from 2011 to 2014. The program profiles various survivalists, or "preppers", who are preparing to survive the various circumstances that may cause the end of civilization, including economic collapse, societal collapse, and electromagnetic pulse. The quality of their preparations is graded by the consulting company Practical Preppers, who provide analysis and recommendations for improvements.
One of the best wilderness survival tactics you will ever implement is to think ahead and prepare yourself for the likelihood of being in a survival situation. Whether you raft on the Yukon River’s rough waters or head for Alaska where for an unforgettable backpacking trip through the Alaskan wilderness, preparing for the “just in case” situations is necessary.

Another concern when you’re lost in the wild is where to procure potable water. Sometimes there will be bubbling streams of crystal clear water rolling down wooded hillsides to fill your water bottle and sometimes you’ll have little more than a stagnant pool standing between you and dehydration. The LifeStraw Personal Water Filter is survival gear that can turn that stagnant pool into a lifesaver.
Hate to break it to you, but your dog probably has a better chance of making it through a total societal collapse than you do. A quick Internet search of "dog survives" lists everything from drowning to being shot, from bear attacks to war -- whereas the closest you've ever come to "surviving disaster" is getting your wisdom teeth pulled, and even then it was only with the help of a cadre of trained medical professionals and a carton of the strongest painkillers on Earth.

Modern-day survivalists aren't generally regarded as the most sane people on the planet. A quick look at any one of the disturbingly common and frighteningly thorough shopping lists they post online drives home the fact that anyone who self-identifies as a "prepper" most likely went off the deep end a long time ago. Sure, it's fine to keep a few extra cans of food and cases of water around for an emergency, but if you start adding body armor and butt paste to your stash, you might want to tell George Miller that it's time to see other people.
The format is fairly standard for a "reality documentary". It does go with the more extreme folks rather than the more common folks who are just putting some things aside for rougher times. But that's OK, in most of the cases. I found many of the people to be pretty ingenious in how they've approached what they perceive to be The End Of The World As We Know It. Maybe they're right, maybe they're wrong. A few might even be slightly over the top (well, there are a few that I think put a step ladder on the top and went from there...) But they have what they consider to be valid reasons for doing what they're doing, so who am I to argue?
Worms are edible (although certainly not desirable for most) and if you can find fresh water you might be able to rustle up some crustaceans to eat.  If you’ve ever had crab or lobster, crayfish are like their mini cousins, all of which are edible.  If you are near saltwater, you can try to capture shrimp, crabs, lobsters, and more in waters approximately ten meters deep.  Mollusks include all of the following food sources you can sometimes find while out in the wild: sea urchins, chitons, periwinkles, barnacles, bivalves, mussels, clams, and snails.
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