Presented by the United States Department of Defense Office of Civil Defense, this 1966 government film documents the destruction of Hurricane Betsy. Betsy made landfall near Grande Isle, LA, on September 10, 1965, with an intensity equivalent to a Category 4 hurricane. The storm caused a surge into Lake Pontchartrain, breaching the levees in New Orleans and flooding several neighborhoods. Accruing roughly $1.42 billion in damages, Betsy was the costliest Atlantic hurricane until Hurricane Camille in 1969.