Two KGB agents are fighting against foreign spies before and during WWII.

Mini-series set in times of WW II about Soviet underground fighters led by brave Anna Morozova. They are establishing connection with Polish people who work on German airfield. And even small victories cost a lot sometimes.

In the Soviet airbase, occupied by the Nazis, a resistance group occurs, led by a modest girl Anna Morozova. For each victory (important, albeit small on a scale of the war) they have to pay a heavy price.