Lost Souls (audio story)

"Lost Souls" is an original BBC Radio 4 audio play written by Joseph Lidster and is a spin-off from the British science fiction television series Torchwood, itself a spin-off from Doctor Who. It aired on 10 September 2008 in the Afternoon Play slot as part of Radio 4's Big Bang Day which celebrated the switching on of CERN's Large Hadron Collider that same day. An mp3 version of the audio play will be made available for seven days after broadcast and it is due for release on CD and as a download on 18 September 2008. Andrew Marr introduced the audio play live from CERN.

Synopsis
When scientists start to disappear after the Large Hadron Collider was switched on at CERN, Torchwood investigates.

Continuity
The Torchwood team are still grieving the deaths of their colleagues Owen Harper and Toshiko Sato. They have not seen Martha Jones, who is working for UNIT, since the funeral. Upon greeting Martha, Jack welcomes her with the words "voice of a nightingale", the phrase he greeted her with upon her arrival in the Torchwood episode "Reset". The team are heard in pursuit of recurring Torchwood monsters Weevils and reference is made to Martha's fiancé, Thomas Milligan, a character seen in Doctor Who episode "Last of the Time Lords" and her friend Julia Swales, a character seen in Doctor Who episode "Smith and Jones". An alien creature poses as the ghosts of Owen, Toshiko and Ianto's deceased girlfriend, Lisa Hallett, a character seen in Torchwood episode "Cyberwoman". Jack uses the phrase "reverse the polarity", a phrase associated with the Third Doctor in Doctor Who.