5! Uncover the world of International Rescue, the most advanced rescue organisation on the planet! 4! Reveal the secrets of their secret tropical island hideout and their network of agents, all over the world! 3! Learn to operate the fantastic Thunderbird machines and their fleet of ancillary vehicles! 2! Discover the identity of the family and friends dedicated to saving lives, whatever the cost! 1! Everything you need to know to become a member of International Rescue is in this Technical Operations Manual - are you up to the challenge? Thunderbirds are Go!