The World War is raging in Europe and young Tom Slade is desperate to become a soldier and fight “with the colors.” But at seventeen, he’s still too young to enlist. What can he do to help? More than he ever dreamed: He starts with convincing a draft dodger to turn back and join the army. Then he gets a job on a transport ship where dark plans are afoot. A German spy has planted a bomb and the clock is ticking. Will the ship go down and hundreds die in the cold Atlantic? Or will Tom’s determined sleuthing stop the threat in time?