The Fourth Protocol (film) The Fourth Protocol (film) The Fourth Protocol is a 1987 British Cold War spy film featuring Michael Caine and Pierce Brosnan, based on the novel "The Fourth Protocol" by Frederick Forsyth. In 1968, an East-West agreement is established to halt nuclear proliferation. One of its clauses, the Fourth Protocol, forbids the non-conventional delivery of a nuclear weapon to a target. MI5 officer John Preston (Michael Caine) breaks into the residence of British government official George Berenson (Anton Rodgers) on New Year's Eve and finds a number of top secret NATO files that should not have been there. He reports his
The Fourth Protocol including the expulsion of all American forces from the United Kingdom and the country's withdrawal from (and repudiation of) NATO. In conjunction with a GRU general, an academic named Krilov, and a master strategist, Philby devises "Plan Aurora" to secure a Labour victory by exploiting the party's support for unilateral disarmament — but the strategist, a nuclear physicist and chess Grand Master, has come up with most of the plan's strategy. John Preston, an ex-Parachute Regiment soldier-turned-MI5 officer, who was exploring hard-left infiltration of the Labour Party, is tasked to investigate the stolen documents and discovers they were leaked by