"Thunderball" is the fourth film in the James Bond series, released in 1965. Directed by Terence Young, it features Sean Connery reprising his role as the iconic British secret agent. The plot revolves around a criminal organization called SPECTRE, which steals two nuclear warheads and threatens to detonate them unless a ransom is paid. The film showcases Bond's mission to recover the stolen warheads, leading him to the Bahamas. With the help of Domino Derval, played by Claudine Auger, Bond confronts SPECTRE and its leader, Ernst Stavro Blofeld. "Thunderball" is known for its underwater action sequences and has become a classic in the spy genre.