The story of the Najla series took place in 1979, and a girl promised a boy in love in that turbulent and insecure situation that if the boy wanted to cross the border between Iran and Iraq and visit Arbaeen, he would reciprocate his love for her. He will answer in the affirmative. You have, but it all happened along the way

A Soldier "Khanjari" (played by Ahmad Mehranfar) who had come to Tehran from the north and was serving his military service at the police station of 100 Mellat. One of the accused who was brought to the police station was a young lady named Elizabeth who had a dog named Lucy. Dagger falls in love with Elizabeth and when he finds out that Elizabeth's dog has been impounded, he mistakenly takes a dog instead of Lucy and gives it to Elizabeth. Elizabeth, who realizes that the dog is not hers, leaves the park under the pretext of parking her car in order not to upset Daggeri.

Iraj and Hamid, old friends from their childhood, have a headache to pursue criminal cases, their foot is unintentionally opened to the case of serial murders... a case that they enter becomes pregnant with more dangerous events, but...