SPECTRE steal two British atomic bombs and hold London to ransom, James Bond (Sean Connery) is one of a number of agents sent to find out where the bombs are, naturally James' assignment is to the Bahamas and not, say, Hull. Naturally James does not do much actual spying, preferring to appear in plain sight and let SPECTRE boss Largo (Adolfo Celi) come to him.
Largo of course has a swanky mansion complete with a pool of sharks. James, with the help of Domino (Claudine Auger) - Largo's mistress whom James soon seduces, manages to foil the SPECTRE plot to nuke Miami after a long (maybe too long to be honest) battle underwater...
A highly enjoyable film though not without flaws, at times the action is rather slow. However, the story and SPECTRE plot is top notch making this a very good entry in the Bond canon.