Bolshevik Tsolak Darbinyan is infiltrated into Dashnak Army as a musician of Army music band. Despite the initial personal conflict with band leader Arsen, he is able to win the friendship of young band musicians including Arsen and to persuade them to back him on the eve of the Bolshevik invasion to Armenia.
| Directing | Henrik Malyan | Director |
| Directing | Henrik Margaryan | Director |
| Writing | Mikael Shatiryan | Screenplay |
| Editing | V. Haykazyan | Editor |
| Art | Sergei Arutchyan | Art Direction |
| Art | Sarkis Safaryan | Art Direction |
| Production | K. Hovhannisyan | Production Manager |
| Sound | Sh. Grigoryan | Sound |
| Sound | Eduard Vanunts | Sound |
| Camera | Ivan Dildaryan | Director of Photography |
| Sound | G. Armenyan | Original Music Composer |