In Detroit, Gonzo, Parv and Nick find a city that appears to be on the brink of extinction, but are soon inspired by the proud locals who are rejuvenating the city, using the abandoned buildings and many vacant lots to create a new type of urban community where innovation and collaboration is key. Later in the episode, while on a journey through the California Desert on a search for the mysterious, man-made Salvation Mountain, they discover Slab City, an off-the-grid community of misfits, artists, drug addicts and hippies who have shied away from mainstream society to create their own self governed, self styled, community.