Right after returning from 100,000 BC in the previous serial, the Doctor and his three companions, land on a strange jungle planet named Skaro, which they have to venture into on account of the TARDIS needing more mercury, and meet the two races that inhabit it, the murderous radiated metallic encased Daleks and the pacifistic Aryan-like Thals. This is it, the serial that introduces what would soon become one of the most beloved villains of the show, the Daleks (whom first appear in episode 6) and while they'd have subtle differences in subsequent arks, this first appearance still makes for a very compelling and enjoyable watch indeed. This whole arc would provide the basis of a Peter Cushing movie in 1965, Dr. Who and the Daleks, a film that took certain drastic liberties and departures from the main series.
My Grade: A+
My Grade: A+