As densely populated as it is, there are many incursions of nature into the urban bustle of Los Angeles: overgrown yards, vine-blanketed retaining walls, slivers of forest between neighborhoods. In Nature Demo, Dodge and Kahn explore the flora and fauna of the Los Angeles River, which flows in a concrete channel through the city. They attempt to build a shelter and scavenge for food, questioning their ability to survive alone in this urban wilderness—though the ruse of their isolation is betrayed by the constant noise of traffic flowing over a nearby freeway. Nature Demo was made the same year as the post-apocalyptic All Together Now, and deals with similar themes of survival and sustainability at the edge of civilization.