After a joint American-Soviet mission to Mars, the astronauts return home and refuse to tell who was the first to put their feet on the planet. Everybody pesters them, but they say they did it together (though they really couldn't.) The Soviet one is drinking with a new friend, whom he knows for a few hours, and the friend says it is impossible that Harrison will claim the honour - and so gets dubbed 'a Martian' himself. Martianss here is really a name for humans for whom petty things don't matter, who work for mankind.