简介： Six girls living along the Amazon, Nile, Mississippi, Danube, Ganges, and Yangtze rivers learn about water and sustainability and use their newfound education to protect their communities and homes.
Maggie Nichols Gina Nichols John Nichols Steve Berta Marisa Kwiatkowski Mark Alesia Rachael Denhollander Jessica Howard Jamie Dantzscher John Manly Tim Evans Jennifer Sey Géza Poszar Tracee Talavera Mike Jacki 纳迪娅·科马内奇 Béla Károlyi Mary Lou Retton Kerri S
