Episode 73

As a group of immortals sail around our solar system seeking enlightenment, the Black Guardian makes his final move against The Doctor ("Enlightenment"). Then, in an effort to prevent parliamentary democracy from ever forming, The Master attempts to stop King John of England from signing the Magna Carta ("The King's Demons"). As for the two most recent modern episodes of Doctor Who ("The Girl Who Waited" and "The God Complex"), there are spoilers between 3:40 and 13:40. Vroom! Vroom!