Starring Robert Beatty, Jack Warner and Simone Signoret, this is the story of a diverse group of people from very different backgrounds, who were brought together in one of the strangest enterprises of the war. Sabotage was their job; sabotage organised from London in the form of macabre practical jokes as ingenious as they were injurious to the enemy. The work was over-clouded with the constant fear of discovery - and what it would mean.