During a meeting with his superior, M, Bond learns that his latest physical assessment is poor because of excessive drinking and smoking. M sends Bond to a health clinic for a two-week treatment to improve his condition. At the clinic Bond encounters Count Lippe, a member of the Red Lightning Tong criminal organisation from Macau. When Bond learns of the Tong connection, Lippe tries to kill him by tampering with a spinal traction table on which Bond is being treated. Bond is saved by nurse Patricia Fearing and later retaliates by trapping Lippe in a steam bath, causing second-degree burns and sending him to hospital for a week.
The Avro Vulcan: closest relation to the fictional VindicatorThe Prime Minister receives a communiqué from SPECTRE (Special Executive for Counter-intelligence, Terrorism, Revenge and Extortion), a private criminal enterprise under the command of Ernst Stavro Blofeld. SPECTRE has hijacked a Villiers Vindicator and seized its two nuclear bombs, which it will use to destroy two major targets in the Western Hemisphere unless a ransom is paid. Lippe was dispatched to the clinic to oversee Giuseppe Petacchi, an Italian Air Force pilot stationed at a nearby bomber squadron base, and post the communiqué once the bombs were in SPECTRE's possession. Although Lippe has accomplished his tasks, Blofeld considers him unreliable because of his childish clash with Bond and has him killed.
Acting as a NATO observer of Royal Air Force procedure, Petacchi is in SPECTRE's pay to hijack the bomber in mid-flight by killing its crew and flying it to the Bahamas, where he ditches it in the ocean and it sinks in shallow water. SPECTRE crew members kill Petacchi, camouflage the wreck, and transfer the nuclear bombs onto the cruiser yacht Disco Volante for transport to an underwater hiding place. Emilio Largo, second-in-command of SPECTRE, oversees the operations.
The Americans and the British launch Operation Thunderball to foil SPECTRE and recover the two atomic bombs. On a hunch, M assigns Bond to the Bahamas to investigate. There, Bond meets Felix Leiter, who has been recalled to duty by the CIA from the Pinkerton detective agency because of the Thunderball crisis. While in Nassau, Bond meets Dominetta "Domino" Vitali, Largo's mistress and Petacchi's sister. She is living on board the Disco Volante and believes Largo is on a treasure hunt, although Largo makes her stay ashore while he and his partners supposedly survey the ocean for treasure. After seducing her, Bond informs her that Largo arranged her brother's death, and Bond recruits her to spy on Largo. Domino re-boards the Disco Volante with a Geiger counter disguised as a camera, to ascertain if the yacht has been used to transport the bombs. However, she is discovered and Largo tortures her for information.
Bond and Leiter alert the Thunderball war room of their suspicions of Largo and join the crew of the American nuclear submarine Manta as the ransom deadline nears. The Manta chases the Disco Volante to capture it and recover the bombs en route to the first target. Bond and Leiter lead a dive team in a fight against Largo's crew and a battle ensues. Bond stops Largo from escaping with the bombs; Largo corners him in an underwater cave and is about to kill him, only to be killed by Domino with a shot from a spear gun. The fight leaves six American divers and ten SPECTRE men dead, including Largo, and the bombs are recovered safely. As Bond recuperates in hospital, Leiter explains that Domino told Largo nothing under torture and later escaped from the Disco Volante to get revenge on him. Learning that she is also recovering from injuries, Bond crawls into her room and falls asleep at her bedside.
