An often over-looked story about World War II is how a group of teenage boys sabotaged the Nazi invaders of their country.  They stood up to Hitler and his henchmen by doing things like flattening tires on army vehicles and even making bombs to destroy parts of the Nazi military installation.  When most of their countrymen were just trying to get along with the Nazis, they took courage from the radio broadcasts they were getting from England.  The boys were eventually caught and sent to prison, but not before others in Denmark saw their courage and began to take steps to defend their country.

This is a tale of courage and daring that sometimes can only come from young people who are dedicated to a cause, but do not really understand their own danger.  I highly recommend this book for middle school and high school libraries.