Harry (Arnold Schwarzenegger) is a senior FBI agent who is ordered to investigate a transnational nuclear weapons smuggling case. For safety reasons, Harry didn't even tell his wife of 15 years, Helen (Jamie Lee Curtis), who he really was. Helen is an ordinary white-collar worker, and her ordinary life has made her tired. Once, car dealer Simon pretended to be an FBI agent and sneaked to Helen's house and lied that he was being chased. The exciting experience quickly fascinated Helen. None of this escaped the eyes of the real FBI agent Harry. Harry used spy reconnaissance methods to make Simon make a fool of himself and pretended to be a Frenchman when he was suddenly attacked by terrorists and the two were kidnapped to a tropical island. Can Harry and Helen finally escape and thwart the terrorist plot?