The plot of this episode is set in motion by the intense rivalry between FOG ("Friends of Ghosts") and SMOG ("Scientific Measurement of Ghosts"). When representatives of the two organizations head to a country church to investigate the sudden reappearance of a man long thought dead, Steed and Emma are called in to help. It isn't long, of course, before murder rears its ugly head. Scripted by Brian Clemens from a story by Anthony Marriott, "The Living Dead" originally aired in England on February 25, 1967, and was first seen in America six days later. ~ Hal Erickson, Rovi