S20, E12: As the Doctor's ethics are challenged and the two Brigadier's finally meet, Turlough plots with the Black Guardian to bring the Time Lord down once and for all.
Starring Janet Fielding, Sarah Sutton, David Collings
S20, E12: As the Doctor's ethics are challenged and the two Brigadier's finally meet, Turlough plots with the Black Guardian to bring the Time Lord down once and for all.