Finn Gunnersen and his friends Loki and Freya are behind enemy lines once more and at the heart of a dangerous Special Ops mission. A mole has struck at the heart of HQ and is jeopardizing the entire resistance network in Holland. Meanwhile Finn s charged with providing a escort for a British Double agent in possession of critical Nazi invasion plans but with his father missing in action, he has a personal score to settle with the enemy . . .