Secret agent Harry Tasker (Arnold Schwarzenegger) is a busy man; when he's not saving the world from terrorists, he's under cover as a boring computer salesman, juggling the everyday needs of his wife, Helen (Jamie Lee Curtis), and his daughter. While Harry and his partner, Gib (Tom Arnold), work to stop a gang of international terrorists from getting their hands on missing nuclear weapons, Helen, feeling neglected, begins a covert affair with a sleazy used car salesman pretending to be a spy. When Harry finds out, he decides to give Helen a lesson in spy games, which backfires when the couple is kidnapped and stuck in the middle of an international terrorist crisis.