Sarnia, Ontario smells like gasoline, melting asphalt, and rotten eggs before you even see what's producing it: more than 60 refineries and chemical plants clustered into a stretch of land known locally as Chemical Valley, an area roughly the size of 100 city blocks that houses 40 percent of Canada's entire chemical industry. A VICE reporter travels there and describes getting dizzy and short of breath almost immediately after arriving, then walks the fence lines where smokestacks flare orange around the clock. A 2011 World Health Organization report gets cited on camera as the film's central evidence, ranking Sarnia's air as the most polluted in Canada, with more toxic emissions coming from its stacks than from the entire provinces of New Brunswick or Manitoba combined. The film stays close to the ground level view of the town, the smell, the flares, the physical discomfort of just being there, rather than building a broader policy argument, leaving the health toll as something the viewer is meant to feel rather than just hear cited.