Watch Online Free HD Solarmovies. The Colorado River is the foundation of the American Southwest. But the confluence of a once-in-a-millennium drought, a hundred-year-old mistake, and a generations-old conflict have put the river-–and the civilization built atop it––in crisis, and at a crossroads. As the southwest continues to grow, and the river continues to shrink, time is running out to solve the problem of the Colorado.