In the second season of this acclaimed crime drama series, Brennan and Booth investigate the site of a train wreck where the bodies of a senator and a high-profile businessman are found within the wreckage. Later, a water main bursts in the middle of the night at the historic St. Agatha’s church cemetery, leaving the cemetery grounds littered with coffins and their once-peaceful inhabitants, and Brennan is called in to identify and help re-inter the remains.