Iro Konstantopoulou was thirteen years old when the Germans invaded Greece. Despite her age, however, she got involved with the resistance. When she was arrested for the first time, her rich father managed to set her free, and she fell in love with a young doctor who took care of her injuries following torture. A little before the withdrawal of the Germans, she participated in the blowing up of a train that was transporting ammunition, and she was arrested again, but this time no one could save her. She was executed at the Chaïdari camp, along with forty-nine other prisoners.

The year is 1965. Natasa Arseni visits Dachau, the place where she was found by the Americans at the end of the World War II. She returns to Greece, and during the train ride she recalls those past events. Before the beginning of the Greek-Italian war, she met Orestis . With the German invasion, Orestis, who was an officer in the Greek army, left for the Middle East. She followed him and accompanied him back to occupied Greece on a mission. She was arrested, interrogated and tortured and was finally sentenced to execution.

Mama Leni, a poor widow, works as a cleaner in a large hotel, while studying in America the only daughter Catherine. The daughter of ignoring their financial situation and believes that her mother is a hotel guest. Suddenly Mama Leni gets a letter from her daughter, she says coming to Athens for vacation with his fiancé Johnny and his father in law of Pete.

The military action of a Greek officer, Pavlos Melas, for the liberation of Macedonia from the Turks and Bulgarians. A story stick to the facts for the heroism and sacrifice of the Greeks. Pavlos Melas is the symbol of the struggle for the independence of Macedonia in Greece.

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.

In 1940, on the eve of the Greek-Italian war, in life of Colonel Diagoras Vartanis, his sister Christina and her husband Captain Hector Psachos appears a second Hector Psachos, which insists that this is true of the two. Christina is still in a dilemma while Vartanis lead the committee to interrogate and investigate which of the two men who claim to be the captain Psachos, is real and what is a spy.

When he loses his son from overdose, in his school, the outraged father will look for the villains responsible for the loss of his child. At the same time, a journalist covers the narrative report on drugs in schools. With her help, the father will discover the gang leader with whom traded smuggled drinks for himself.