Sergeant Andy Davidson. Outside Torchwood, within the police. Dreaming of the day he'll be recruited to battle aliens and save the world. Today could be the day his life changes; but is Sergeant Andy Davidson ready?

Based on the beloved Doctor Who spin-off series created by Russell T Davies, Big Finish's range of Torchwood audios continue the legacy of Earth's greatest defenders, with new stories set in and around the original TV show.

The third instalment of our second series of audio dramas, Torchwood: Ghost Mission sees Torchwood's loyal ally Sergeant Andy Davidson (Tom Price) finally invited to join Gwen Cooper's newly established team. But will he be able to impress Torchwood's board of directors?

Sergeant Andy Davidson has always wanted to join Torchwood. And now he finally gets his chance.

Under the strict observation of his Torchwood Assessor, Andy sets out to prove he's got what it takes. When a chemical spill turns out to have serious consequences, when monsters roam the Bay, and when an ancient entity awakes, Andy decides he could do with a helping hand. The problem is his Torchwood Assessor doesn't have any hands. Norton Folgate is a ghost.

Written by series producer James Goss, Torchwood: Ghost Mission is available to buy and download today, starring Tom Price as Sergeant Andy Davidson and introducing Samuel Barnett as Norton Folgate, a 1950's member of the Torchwood team now resurrected as a ghost! Also appearing are David Warner, Lisa Bowerman, Laura Doddington and Aaron Neil.

You can subscribe to Torchwood Series 2 at an additional saving, with CD subscriptions unlocking complementary digital downloads, available as soon as a title is released. Series 1 is also available in a single money-saving bundle.

Torchwood continues in June with the return of Indira Varma as Suzie Costello in Torchwood: Moving Target.