After an American Navy base is annihilated by a secret weapon, Agent OSS 117 is sent to Japan to investigate the organization that's claiming responsibility, and threatening the US with another attack, if they don't pay.
Professor Serafino Benvenuti is a master of classical music who has the passion of the orchestra director. However, the young audience of the 60 does not appreciate classical composers like Mozart or Beethoven, and so Serafino is likely to have compromised his image as a director. One day Serafino receives the news that his adopted daughter Rita is about to return to Italy from America, where she is studying. Serafino is very happy, because at least he can teach her the real music. However, Rita is deeply grown and changed: she follows the musical patterns of her time: the rock music and blues. Serafino gets very angry, especially when he discovers that his daughter falls in love with a young man, a member of a band called "The Rockets.
A U.S. Treasury Department agent is sent to Morocco to find a fortune in counterfeit money hidden by the Nazis during World War II. The agent escapes from prison with the only man who knows the location of the bogus bills. The duo is shadowed by a group of former Nazi soldiers who hope they will lead them to recover the lost loot. The feature plays as a crime drama with overtones of international espionage.
Morgan, a lapsed burglar, is drugged and shanghaied on board a yacht by beautiful Colleen. When he comes to, the athletic young man learns that Colleen and her friends want him to break open the vaults of a Carribean island where a ruthless dictator has deposited a treasure stolen from his people. Despite the way he has been treated, Morgan accepts the mission. The group, supported by local resistant fighters, storm the fortress, but Colleen's father gets killed during the attack. The treasure is finally retrieved and is returned to the people. Morgan and Colleen will say yes to each other for better or for worse.
