At Hart Mountain, one of the country's largest experiments on public land is unfolding. Outside the wildlife refuge, Great Basin creeks run dry too early, iconic aspen dwindle and songbirds are harder and harder to hear. But on the refuge, things are starkly different. Creeks flow, aspen thrive and bird watchers travel long distances to see the species here. This film follows a team of researchers working to explain the amazing transformation and the man who made this success story possible against all odds.