In the conclusion of the six-part story "The Faceless Ones," the alien Chameleons continue to repopulate their dying planet by stealing the personalities of unwary Earthlings. With no other tricks up his sleeve, the Doctor (Patrick Troughton) relies upon a desperate bluff to thwart the Chameleons. Anneke Wills and Michael Craze make their final series appearances as the Doctor's companions, Polly and Ben. Written by David Ellis and Malcolm Hulke, "The Faceless Ones, Episode 6" originally aired on May 13, 1967. This episode evidently no longer exists. ~ Hal Erickson, Rovi