Carolyn Perry

In 17th century England, the Doctor and itinerant thespian Richard Mace uncover a plot by a crew of criminal Terileptils to wipe out humanity.

A warp ellipse draws the TARDIS off course. The Fifth Doctor's companions are separated from him not in space, but in time, and he has to deal with a treacherous schoolboy named Turlough. But why does the Doctor's old friend, the Brigadier, not remember him at all?

Blue Peter presenter Yvette Fielding takes Peter Davison, Mark Strickson and Janet Fielding on a trip through BBC Television Centre, meeting up with old friends and colleagues as they reminisce on their time spent working in the iconic building. With film traffic supervisor Neville Withers, assistant floor manager Sue Hedden, costume designer Odile Dicks-Mireaux, production assistant Jane Ashford, make-up artists Joan Stribling and Carolyn Perry, former BBC producer and writer Richard Marson, senior camera supervisor Alec Wheal, exhibitions assistant Bob Richardson and videotape engineer Simon Anthony.