Torchwood - Season 1 Episode 3

After Gwen Cooper recovers an alien device from Sean Harris, the device seemingly takes her back in time to the 1940s where she sees a young boy, alone on a railway platform. Soon after, Owen has a similar experience only this time he is under a bridge in the early 1960s where a young woman is raped and murdered. They trace both the boy and the murderer and learn that the boy was well taken care of. As for the murderer, the case remains unsolved, something that outrages Owen.