In the conclusion of the four-part story "The Smugglers," the buried treasure that had set the plot in motion is finally discovered. In addition, the Doctor (William Hartnell) reveals a secret that will profoundly affect himself, his companions, and two sets of villains (one more villainous than the other, of course). Written by Brian Sayles, "The Smugglers, Episode 4" originally aired on October 1, 1966. Except for a brief "murder" sequence that was filed for preview purposes, this episode no longer exists. ~ Hal Erickson, Rovi