"Torchwood": Asylum

When PC Andy Davidson arrests a young girl for shoplifting, he thinks it's going to be a routine case.

That is, until he sees that she is carrying a gun. The girl is soaking wet, covered in mud, and the weapon is like nothing he's ever seen before.

He knows that this is a case for Torchwood...The team discovers that the girl is called Freda, but can find out nothing else.

Yet when she speaks, it's a strange mix of English and Icelandic,but with a Cardiff accent.

While Jack and Ianto check out the girl's weapon and her blood sample at the Hub, Gwen and PC Andy take Freda to a safe house.

But when Jack calls with the results - and Freda goes on the run - PC Andy finds his world turning upside down.

Written specially for BBC Radio by Anita Sullivan, "Asylum" stars John Barrowman as Captain Jack Harkness, Eve Myles as Gwen Cooper, Gareth David-Lloyd as Ianto Jones and Tom Price as PC Andy Davidson.

It contains adult themes and language.