Though his wife was dead, Jeff Tracy raised his five sons alone with some help from his mother. As the years went on, Jeff started coming up with ideas for an organization called International Rescue. With the help of a young scientist named Brains, Jeff Tracy had the rockets he needed.

The rockets were called Thunderbirds. IR' s nickname were The Thunderbirds. Jeff Tracy was around to see the first four and the construction of thunderbird five.

Jeff Tracy was poisened during the construction of TB5 and died, leaving his jealous younger brother Theodor or Teddy for short, in charge of his five sons,

14 year old Scott

13 year old John

12 year old Virgil

11 year old Gordon

10 year old Alan

Teddy Tracy had promised to take good of them but he took back what he said