Central Pennsylvania's Great Flood of 1889 remains the deadliest in US history, killing more than 2,200 people. Al Roker tells the riveting story of this tragedy that remains one of the worst weather related disasters in American history. Follows a compelling cast of characters whose fates converged because of that fateful day, including John Parke, the engineer whose heroic efforts failed to save the dam; Henry Clay Frick, the robber baron whose fancy sport fishing resort was responsible for modifications that weakened the dam; and Clara Barton, the founder of the American Red Cross, who spent five months in Johnstown leading one of the first organized disaster relief efforts. Weaving together their stories and those of many ordinary citizens whose lives were forever altered by the event, Roker creates a classic account of our natural world at its most terrifying. 2018.