Mannix gets an urgent call from the police. Lt. Art Malcolm, Mannix's friend who also served with the detective during the Korean War, is being held hostage in an abandoned building. The police are unable to enter the structure, which is filled with explosive booby traps. The man behind Malcom's abduction served in the same outfit as Mannix and Malcom. The man was left behind when a group of G.I.'s escaped from a Korean prison camp. He has been revenging himself on the escapees and now only Mannix and Malcom are left alive. Written by
Did You Know?
, who plays Gus Keller, was actually stationed in Korea during his stint in the U.S. Army in the 1950s. See more
When Mannix first approaches the photograph of his Army unit in Korea that is displayed on the wall, there is a grease pencil dangling in front of it on a string. Then the string and the pencil are not visible in the first closeup of the photograph, but in a subsequent closeup the shadow of the string and pencil hide part of the photograph, even though Mannix hasn't touched the string, pencil, or picture. See more