Madeline, Deirdre and François dive to the Skythrust for the fashion show, the plane takes off, London-bound, and the fashion show begins. Madeline and Mason, hijacks the airliner, giving Captain Ashton instructions to fly to the Sahara Desert, where the rest of the gang awaits.
Thunderbird 2 knocks-out the undercarriage with a missile, Aston tells Mason that they have no alternative but to head for London International Airport, were they at least have the facilities to handle a crash-landing. Reluctantly, he agrees. Madeline and Mason retreat to the back on the craft for safety.
The aircraft crash-lands at London Airport, but the secret 'Hackenbacker Device' comes into play, a rear-mounted electable fuel pod flies free and is detonated before the plane lands. Lady Penelope hold the hijackers at gun point until the police arrive.