Life After People is a television series on which scientists, structural engineers, and other experts speculate about what might become of Earth if humanity has instantly disappeared. The featured experts also talk about the impact of human absence on the environment and the vestiges of civilization thus left behind. The series was preceded by a two-hour special that aired on January 21, 2008, on the History Channel which served as a de facto pilot for the series that premiered April 21, 2009. The documentary and subsequent series were both narrated by James Lurie.
The underground world undergoes devastating changes; geothermal power plants buckle under the strain of superheated steam; America's former nuclear military command center comes under attack; 400 million animals overrun a town.