The Mekong Delta in southern Vietnam supplies most of the world's pangasius, the mild white fish sold abroad as dory or catfish and packed into supermarket freezers from Europe to the United States. The film follows the industry built around this single species, tracing it from delta fish farms through processing plants to the export contracts that turn a river catfish into a multi-billion dollar global commodity. It looks at the people whose livelihoods depend on that chain, the farmers raising the fish in dense river cages and the workers and traders who move it to market, and at the pressure that scale puts on the Mekong itself. The title points to the conflict running underneath the trade: competition over water, over price, and over who controls a resource that much of the world now eats without knowing where it came from.