The American River ecosystem is fed by melting snow of the Sierra Nevada through its headwaters and tributaries, including its North, Middle, and South Forks. It runs from the Sierra Nevada mountain range to the Sacramento River in downtown Sacramento. The American River watershed supports Mediterranean, temperate, and montane ecosystems, and it is the home of a diverse array of fish and wildlife. The American River is a vital waterway in California and serves as a lifeline for both wildlife and human communities.

Through vignettes of stories told by the people and wildlife on its shores, this documentary explores the intricate ecosystem of the American River and the interweaving of human history – from the Martis people thousands of years ago to the Gold Rush of the 1850s to present day struggles of unhoused living on the edges to the conservation efforts keeping the banks wild. The American River Ecosystem is one of the most beautiful and revered regions in our nation. Its preservation is essential as a lifeblood for the wildlife, but also for the peace and solace it provides the people of the region. While many people see the river from the edge of the city, few people are aware of the depth of its ecological and historical significance. Where the river runs, it charts a course of human and natural history emblematic of the American West.