Thunderbirds Are Go: Fireflash

SINOPSIS

Kayo rides aboard Fireflash, a Brains-invented supersonic airliner, but is unaware its control has been seized by a mystery individual. Meanwhile, International Rescue realises the plane has vanished from its monitors and tries to locate it. After noticing the aircraft is flying in the wrong direction, Kayo manages to avoid a powerful gas that has knocked out both the passengers and crew.