Drama based on real-life events. Marie Stubbs, a diminutive Glaswegian headmistress who is coming up to retirement age, takes on one last challenge: to improve the fortunes of St George's School in north west London which was facing closure after the notorious murder of its previous headmaster, Philip Lawrence, in 1995 as he was breaking up a fight between his pupils and those from a rival school.
During WW 2, a Basque shepherd is approached by the underground, who wants him to lead a scientist and his family across the Pyrenees. While being pursued by a sadistic German.
Finding the fourth segment of the Key to Time was simple enough, but holding onto it may be another matter. The Doctor and Romana find themselves embroiled in the political games of the planet Tara, where doubles, android or otherwise, complicate the coronation of Prince Reynart.