The story tells about the blockade of Leningrad during the Great Patriotic War. From September 1941 to January 1944, the Nazis bombed and fired at the city several times every day. More than a million Leningraders died of hunger and cold, but they did not give up, heroically working and suffering hardships. The heroes of the book - the children of besieged Leningrad extinguished incendiary bombs in the attics, caught signalmen-saboteurs, helped people survive. Love for the Motherland, perseverance, courage, dedication - these are the main features of these guys, thanks to which they withstood inhuman trials.