Though the mother knew they could be shot for violating the rules of war, she took a gamble and sternly told the lost and hungry Germans that there would be no killing that night. The boy and his mother had a Christmas chicken all fattened up and ready to be butchered, so they went ahead and prepared the feast with their unexpected guests. Proving that Hollywood has no monopoly on Christmas magic, the American soldiers and the German soldiers all turned their weapons over to the woman and feasted together, without so much as exchanging passive-aggressive insults.
"What are your plans for the weekend?" "Well, we're -- awwwww, you almost got me. You bastard."
Then, in the morning, when the wounded American had semi-recovered, the German soldiers directed the American soldiers back to their lines, telling them how to avoid all the areas that the Nazis had recaptured.
The story spread after the boy, Fritz Vincken, grew up and told the story to Reader's Digest (it became so famous that even President Ronald Reagan mentioned it in a speech when he visited Germany). You could write it off as something he pulled out of his imagination when up against a magazine deadline, but then in 1995 Fritz found one of the soldiers, who had separately been telling the story to everyone he met for years. On that night, American and Nazi soldiers really did just sit down in the middle of the war and have a quiet Christmas dinner.
That little boy grew up and got to meet the American soldier who gave him the coolest Christmas ever.