Ghost Machine
S1, E3: Gwen ends up with an alien object, which shows visions of the past to the Torchwood team. As they try to find the owner of the object, the team learn of a murder that happened 40 years earlier, and a murderer is still at large.

S1, E3: Gwen ends up with an alien object, which shows visions of the past to the Torchwood team. As they try to find the owner of the object, the team learn of a murder that happened 40 years earlier, and a murderer is still at large.