Fan CastingFantastic Actions Bureau

Alongside her butler/chauffeur/bodyguard Aloysius "Nosey" Parker, Lady Penelope Creighton-Ward receives a call from her former employer - Her Majesty's Federal Agents Bureau (FAB - an amalgamation of all British Military Intelligence) telling her the time to make a move against the Mysteron agents in the Shadow Syndicate, Aquaphibians and Subterrains now under the leadership of Masterspy and the "Mysteronized" Captain Black. Fireball XL5, Stingray and Supercar are put under the joint operational influences of SHADO and Spectrum where they are joined by WIN Unit Joe 90 and International Rescue in preparing to launch an offensive to destroy the Mysteron Alliance's military strength. Before the bigger battle can unfold, the joint interstellar task force is joined by Mimas and the survivors of Starbase Alpha in taking the fight to Enigmas and the armadas of Captain Black. Escaping, the Mysterons leave an eerie clue behind.