When a planeload of Pakistani orphans are shipped to his state for permanent relocation, the governor of Idaho defies the president and closes the state's border. News Net Television, a cable news program that makes hay by reporting on political scandals, quickly spins the racist act into an overnight media sensation, creating a divide in national opinion over the issue.

Archetypal buddy cops Riggs and Murtaugh are back for another round of high-stakes action, this time setting their collective sights on bringing down a former Los Angeles police lieutenant turned black market weapons dealer. Lorna Cole joins as the beautiful yet hardnosed internal affairs sergeant who catches Riggs's eye.