This final program gives an in-depth look at how water influences life on the continent. The rainfall in the northern mountains feeds the Nile, Congo, and Niger rivers, drawing animals from the surrounding arid lands. But these sources of life can also be a fearful place, as we see crocodiles attack buffalo, and hippos engage in fatal territorial battles. Meanwhile, see rare footage of thousands upon thousands of flamingos performing mating rituals in the East African lakes.