When Cadets Don and Jim Mercer and their friend Terry Mackson were ordered by Colonel Morrell of Woodcrest Military Academy to gather together all the school trophies, they were able to find all except one-the cup awarded to the Class of 1933. What had happened to the cup was a mystery the boys were determined to solve. And little by little Don and Jim uncovered a strange story and unraveled a mystery that had puzzled school authorities for years. The Mercer boys uphold the honor of Woodcrest against a conspiracy of silence and dishonor.