Spy handler Frank is honoured and totally bowled over when he's invited to join a top secret order, the League of Mata Hari. However, the curious spies can't help but probe and their meddling leads them to a criminal conspiracy deep within MI9 that includes top brass! The team risk their careers and their lives to lead the purge of the traitors.

KORPS has abducted the country's most famous agony aunt, Mandy Pluckey. In addition to solving teenagers' troubles, she's the trusted confidante of the Prime Minister.