What is the main conflict in The Train from Rhodesia by Nadine Gordimer?

Though not an overtly political story,' "The Train from Rhodesia" depicts the prejudicial attitudes that caused apartheid and reinforced it once racial segregation became law. Critics have praised the story for its unflinching yet subtle social commentary, a tactic that allowed Gordimer to publish it in South Africa without it being censored. By presenting characters of both races who are degraded by their belief in racial inequality, the author shows how both black and white South Africans are harmed by apartheid. While readers debate the merits of her detached, unemotional style, many find themselves compelled by her passion.