Kaldor City (audio series)
From Tardis Wiki, the free Doctor Who reference
Kaldor City was a series of audio dramas produced by Magic Bullet Productions, based upon characters and a locale featured in DW: The Robots of Death and PDA: Corpse Marker.
Of these dramas The Prisoner was a twenty minute play from Magic Bullet Productions released as part of an MJTV Productions CD, The Actor Speaks: Paul Darrow, which featured an interview and several short stories unrelated to Kaldor City.
