The Time Lord concludes his tale of battling alien bugs in a 19th-century big top. Stars Tom Baker and Richard Franklin.
Still barricaded in their cottage, the Time Lord reveals more to former UNIT ally, Mike Yates about the 19th century extra-terrestrial swarm's efforts to re-animate the dead.
Part of a five-story adventure written by Paul Magrs.
Starring Tom Baker as the Fourth Doctor, Richard Franklin as Mike Yates, Susie Ridell as Sally, Michael Maloney as Dr Adam Farrow, Stephen Thorne as Antonio and Jilly Bond as Francesca.
Producer: Kate Thomas
Made by BBC Audio.