I am a fan of the series so far. Although everything is staged, the show gives you a glimpse of how diffiuclt it would be to rebuild from nothing. In season one the big build was a solar energy plant and vehicle. In season 2 it was a wind mill. In both seasons they had to "salt" the area with the proper tools and equipment to enable the builds. But this was due to the limited area they had available for scavenging. But the show does bring an attempt to recreate older technology to the table. Forging, water purification, primitive fishing / hunting, and even building a radio from pure scrap - all experimented with and with various degrees of success.