sentences:  Both countries are destroyed, as is most of the world.The submarine crew finds refuge in Melbourne, Australia which the radioactive fallout has not yet reached (though radio communications with several radio operators farther north than Australia indicate that radiation has reached their countries and will be in Australia in a few months).Towers places his vessel under the command of the Royal Australian Navy and is summoned to attend a briefing, partly regarding an automated digital broadcast coming from Alaska in the Northern Hemisphere.