Watch the full episode of Caveman Cold Case

See stills and behind the scene images of Secrets of the Dead: Caveman Cold Case

(Premieres Wednesday, May 15) Journey to Spain to investigate a double Neanderthal mystery.

Watch the full episode of Death on the Railroad

Read the New York Times' article that covers the story of Secrets of the Dead: Death on the Railroad

See stills and behind the scene images of Secrets of the Dead: Death on the Railroad

(Premieres Wednesday, May 8) Less than two months after 57 Irish immigrants were hired to lay railroad track in Pennsylvania in 1832, all were dead. Were they victims of a cholera epidemic or something much darker?

Watch the full episode of Bugging Hitler’s Soldiers

See stills and images of individuals featured in Secrets of the Dead: Bugging Hitler's Soldiers.