Tom Baker (now the second best Doctor ever) in his fourth tale as the universal altruist Doctor Who. The Doctor re-visits the war-torn planet of Skaro on a mission from the Time Lords themselves. Their intention is to put a halt to mad scientist Davros' plan to mutate aliens into a breed of lethal silver composters (Daleks) with tracheotomies, a poor sense of humour and a rage issue with anywhere that doesn't provide wheelchair access; "Pity? I have no understanding of the word. It is not registered in my vocabulary bank. Exterminate!" Aaaghhh...quick...climb the stairs! Nostalgic genius.