This is the story of a pool and the animals that cannot live without it.  It's a place where hippos and crocodiles survive  in mysterious harmony. A crowded pool... where predator and prey are drawn together  and where strange things happen that have rarely been seen before.  At this pool thirst can be dangerous, and drinking... becomes a deadly game of chance.  When the pool shrinks in an unrelenting drought... there is a desperate fight for life. A wild anarchy takes over that only the fittest can survive.

Here in a strange communion hippos attend the last feast of the crocodiles. A river in Africa... It's known as the Luvuvhu or Hippo river,  and where land and river meet there exists a rich concentration of animals. For countless years, this river has sustained life  in the northern reaches of South Africa's Kruger National Park.

When good rains have fallen there is abundant water for all,  but this year little rain fell, the river dwindled to a narrow channel,  and finally stopped flowing. The pools that remain in the river-bed are life sustain oases, and this which is one of the largest and deepest,  and has never been known to go dry,  is a favorite refuge for hippos and crocodiles. For those who have to drink here each day  the challenge is to drink and survive. With over 60 crocodiles congregated here caution becomes the first rule. Wise in the ways of the pool, oxpeckers, on their floating islands, drink safely, and these unpredictable giants  don't seem to mind the few extra ounces of their company. But, more extraordinary is this young crocodile, the smallest in the pool, who's become a regular passenger and is possibly safer  basking on the surprisingly tolerant hippos than with its own kind. Wily baboons have another strategy.  They dig pits at the pool's edge and drink the seepage water,  rather than risk a croc attack.