Bordering the vast Amazonian rainforest along the Argentinian Paraná River, a ruthless band of three brothers led by the psychotic Tarquinho uproots the lush woods and its peaceful inhabitants to grab their land. However, when Vania, the daughter of a large tobacco farm owner is abducted, the cryptic and blessed with a quasi-supernatural bond with the land, Kaí, emerges from the river, on the trail of her gun-toting captors. But who is this silent protector? Can he save the innocent Vania and the wild jungle from deforestation?