This is the main character Lev, he's half jewish which plays a part in the story. But he's 17 years old and he's not the most attractive, so in return he's also not very good with girls.
Lev Finds a dead German Soldier who died from the cold, so he stole a german knife and a flask filled with liquor until he was found by Russian Police and sent to jail for looting and being out after curfew.
Here in Jail is where Lev meets the other main character of the story Kolya who was a former military who was put in jail for leaving his battalion.
But sir, there's no eggs anywhere in the city.
How much longer?
Just keep following the railroad.
They come every night, sometimes four, sometimes six, sometimes twelve.
I need a dozen eggs from you two, you have till next thursday.
Then the two boys get released from jail and sent straight to the colonel in a mansion in the middle. Here is where the colonel orders Lev and Kolya to go out and find 12 eggs in a weeks time for his daughters wedding but if they don't find the eggs then they would be executed. This seems like an impossible task since Piter is getting bombed everyday so materials are scarce.
The boys searched constantly through piter but could not find anything. That's when they realized they would have to go to a different city to find the eggs. So, the boys started walking through the knee-deep snow and sometimes waist-deep to get to the next city.
Here the boys end up getting lost and find themselves upon a small house with four girls dancing and singing. When they walk in and start talking the girls tell them that German soldiers come to the house every night. So, Kolya and Lev start to make a plan.