1985:- England has been invaded by the Warsaw Pact countries and middle-class couple Hermine and Godfrey retreat to their rural hide-away but,having witnessed a bunch of incompetent commandos kill each other,get separated. Godfrey falls in with an American platoon but is captured by the Japanese and escapes from a P.O.W. camp whilst Hermine,having watched a group of Mexican guerillas on a looting spree, is romanced by a Russian officer before they are reunited.