In the third episode of the seven-part story "Doctor Who and the Silurians," a freak electrical surge has revived the Silurians, a super-intelligent reptilian race who ruled the earth before the emergence of mankind. Disdainful of the "evolved apes" currently in control of the world, the Silurians intend to regain their former power and glory -- but not if the Doctor (Jon Pertwee) can stop them. Written by Malcolm Hulke, "Doctor Who and the Silurians, Episode 3" first aired on February 14, 1970. Filmed in color, this episode is presently available in black-and-white only. ~ Hal Erickson, Rovi