The Lost Files is a series of three radio dramas released prior to the fourth series of Torchwood, a British science fiction television series which airs on the BBC. These dramas aired as BBC Radio 4's Afternoon Play on the 11,12 and 13 July 2011 and feature the regular cast. Although broadcast to coincide with the airing of Torchwood: Miracle Day, the three episodes are set prior to the Torchwood: Children of Earth miniseries of 2009 as they include the character of Ianto Jones, who is killed off in the 2009 miniseries.
|"The Devil and Miss Carew"
||11 July 2011
|When Rhys uncle dies, the Torchwood team discover an alien device at his nursing home, and the race is on to stop a masterplan that will unleash chaos across the planet.
||12 July 2011
|The Torchwood team investigate an underwater mystery, and when they are all lost in the Ocean, they are at the mercy of a hungry alien.
|"The House of the Dead"
||13 July 2011