Steward/Gazit Productions

In the spring of 1927, after weeks of incessant rains, the Mississippi River went on a rampage from Cairo, Illinois to New Orleans, inundating hundreds of towns, killing as many as a thousand people and leaving a million homeless. In Greenville, Mississippi, efforts to contain the river pitted the majority black population against an aristocratic plantation family, the Percys, and the Percys against themselves. A dramatic story of greed, power and race during one of America's greatest natural disasters.

In the predawn hours of March 28, 1979, a reactor of the Three Mile Island nuclear power plant near Harrisburg, Pennsylvania, began to overheat. The lives of half a million people soon hung in the balance, as human error and mechanical failure combined to create the worst nuclear accident in American history.