Sean Connery returns as James Bond in this Cold War-era entry, racing to stop the criminal organization SPECTRE from detonating two stolen nuclear warheads unless a massive ransom is paid, with much of the action unfolding in the waters off the Bahamas. Its elaborate underwater sequences, filmed with then-groundbreaking scuba photography, became a signature set piece and a huge technical undertaking for its time. A massive box-office hit that cemented Bond's status as a global franchise phenomenon, it remains one of the most commercially successful entries in the series' entire run.