Harry (Arnold Schwarzenegger) is a senior agent of the US FBI. He is under orders to investigate a transnational nuclear weapons smuggling case. For security reasons, Harry did not even tell his wife Helen (Jamie Lee Curtis), who had been married for 15 years, his true identity. Helen is an ordinary white-collar worker, and her ordinary life has made her tired. Once, Simon, a car dealer, pretended to be an FBI agent and sneaked into Helen's house and lied that he was being hunted. The exciting experience soon fascinated Helen. None of this escaped the eyes of the real FBI agent Harry. Harry used spy investigation methods to make Simon look ridiculous, and when he was about to tease Helen by disguising himself as a Frenchman, he was suddenly attacked by terrorists and the two were taken hostage to a tropical island. Can Harry and Helen finally escape and thwart the terrorist conspiracy?