Patrick Troughton returns to his old role of the Second Doctor in the three-part adventure "The Two Doctors." Sent to investigate a space station, the Doctor and his companion, Jamie (Patrick Hines, also making a return appearance), are attacked by the Sontarans. It is up to the Sixth Doctor (Colin Baker) to rescue his distinguished predecessor from this and other perils. In keeping with the nostalgic milieu of this adventure, the early sequences with Patrick Troughton were filmed in black-and-white. Written by Robert Holmes, "The Two Doctors" was originally telecast in England on February 16 and 23, and March 2, 1985, then released in a six-part version in the United States. ~ Hal Erickson, Rovi