Part 6 (of eight) profiles a Ugandan Lake Victoria fisherman and a Tanzanian rice-farming couple. Both are gambling on “Restless Waters.” Overfishing and pollution have depleted Lake Victoria fish stocks, so Charles Tinkewimeru decides to buy a boat big enough to ferry tourists on the lake. Some 500 miles away in Tanzania's Kilombero Valley, Amanda and Simone Ngwatima have planted their crop. Rain is key---too little and the rice won't grow; too much and it'll “drown,” says Amanda. This year, the rains are late and hungry hippos are raiding their land. Joe Morton narrates.