S23, E14: Mel realises that the Valeyard has created a weapon within the Matrix that will destroy the Time Lords, and the Doctor is forced to rely on the Master for help...
Starring Michael Jayston, Anthony Ainley, Tony Selby
S23, E14: Mel realises that the Valeyard has created a weapon within the Matrix that will destroy the Time Lords, and the Doctor is forced to rely on the Master for help...