This is a two-episode video series, each episode lasting approximately 80 minutes. This video series, together with the video series "Unknown War 2: The Man with Two Faces," is a remake of the older television series "The Unknown War (1971)." Two video series were released due to the long total duration. The original music by Danae Evangelou from the opening credits of the 1971 television series is the same music heard in the opening credits of the video series. These two video series were broadcast as a television series by ANT1 under the title "The Unknown War (1990)" when the station began operating, and it was the first Greek television series broadcast by the station. That television series was rerun in 1995 by New Channel.