The devastating Northridge earthquake struck Los Angeles in 1994, killing 57 people and causing $20 billion in damage in less than 20 seconds; expert scientists and engineers investigate why these structures were not prepared for the violent disaster.

After a groundbreaking NASA mission, the space shuttle Columbia meets catastrophe as it re-enters Earth's atmosphere; expert engineers and scientists investigate the cause of this tragic disaster.

When the Exxon Valdez oil tanker spills millions of gallons of crude oil at sea, it contaminates Alaska's pristine coastline and creates an apocalyptic environmental catastrophe. Experts investigate what caused this horrific disaster.
 

On a test flight for an experimental Virgin Galactic spacecraft, catastrophic design flaws send this multi-million dollar endeavor on a crash course to tragedy; experts investigate what caused this visionary engineering marvel to fail.