Doctor Who S20E03 - Arc of Infinity (3)
Doctor Who (1963)
S20E03 Arc of Infinity (3)
Episode Overview
The Doctor's execution raises suspicions, prompting the Castellan to enlist Commander Maxil to investigate thoroughly yet discreetly. Meanwhile, as the Doctor encounters the anti-matter entity within the Time Lord Matrix, Tegan and her cousin's friend find themselves in trouble with a bird-like alien on Earth.