- Doctor Who delivered one of the biggest twist since the last few years in tonight's first half of a two parter. - Our jaws dropped when a [Spoilers sweetie][Seriously, spoilers! click only if youre sure][Last warning!!!]former friend of the doctor is revealed to be the Master, who kidnaps the doctor and leaves the companions on a freefalling plane. - Spyfall, Part 2 airs this sunday.