Two series, totalling thirty-two 50-minute episodes, were filmed between 1964 and 1966. Set in the 2060s, Thunderbirds is a follow-up to the earlier Supermarionation productions Four Feather Falls, Supercar, Fireball XL5 and Stingray. It follows the exploits of International Rescue, a life-saving organisation equipped with technologically advanced land, sea, air and space rescue craft. The main characters are ex-astronaut Jeff Tracy and his five adult sons, who pilot the Thunderbirds.
Set between 2065 and 2067, Thunderbirds follows the exploits of the Tracy family, headed by American industrialist and ex-astronaut Jeff Tracy. The Tracys make up International Rescue, a secret organisation founded to save human life. They are aided in this mission by technologically advanced land, sea, air and space vehicles. The most important of these vehicles are the "Thunderbird machines", each assigned to one of the five Tracy brothers.
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