In the Choctaw Nation of Oklahoma, the Kiamichi River is a bastion of eco-diversity. A Texas corporation seeks to dam and build a hydroelectric plant on the small river. For a group of locals, theirs is a generations-long struggle with resource extraction and displacement that began with the Trail of Tears. The story follows the river as its main character as the director also explores the effects of her Choctaw grandfather’s work for the Army Corps of Engineers - damming rivers throughout tribal land in Oklahoma. Interwoven are the stories of the river’s advocates—residents, Choctaw culture-keepers and scientists—who have come together to protect the river.