The Boys Who Challenged Hitler: Knud Pedersen and the Churchill Club

At the outbreak of World War II, Germany marched into Scandinavia. Norway put up a fight. Denmark, however, capitulated quickly. Businesses were more than happy to earn money from the German "protectors". Germany treated the Danes as a near-equal (they were the right race), and still let them govern themselves. However, the Germans occupied some of the key strategic areas for themselves. While many Danes objected to this, few were willing to take action. Knud Pedersen and the Churchill Club were some that did.
They were teenage students that did not like the Nazis. They committed small acts against their oppressors. They stole weapons and vandalized Nazi holdings - often in broad daylight. However, they were primarily upper middle class teenagers and didn't have the heart to seriously injure others. In the book, it felt like they were building up to their big acts of sabotage as they finally destroyed some Nazi holdings. However, shortly afterwards, they were caught and jailed. Half the book details their activities after being caught. They were unwilling to back down. They pretty much forced the government to jail them (otherwise the Nazis would have excuse for taking over the justice system.) Even in jail, they had many a sympathetic Danish ear, and some were able to sneak out of their cell and wreck havoc at night before returning to their cells. Some were moved to German controlled cells and treated much worse. Eventually, they were freed and some were able to participate in the resistance movement at the end of the war. Some of them were able to go back to school and continue on with their lives afterwards. Others were seriously traumatized by the experience. What they accomplished did very little to directly impact the occupation. However, they did provide the seed for the later Danish resistance.
I was initially expecting some bold events in the story. But, in typically Danish fashion, there is very little drama going on in Aalborg. It is the subtlety of the Danes that undermines. The book shows the kids with a strong rebellious defiance, even if they are not able to accomplish much with it.