Raging rapids, unforgiving sandbanks, and marauding hippos are just a few of the challenges an international team of philanthropists face as they travel the entire length of Africa's Zambezi River. Riding fast, inflatable boats, the team meets communities devastated by malaria, and health workers struggling to cope. The team's mission was to change lives, but by the end of the two-month expedition, team members discover their own lives have been profoundly affected.