建国初期,东北安平车站面临货物积压。“999”号机车司机长郭大鹏提出“满载超轴法”来缓解车站的运输堵塞问题。保守的机务段长孟范举表示反对,但是,上级采纳了郭大鹏的意见。在苏联专家及局领导、党组织的支持下,“满载超轴法”大获成功,郭大鹏受到了上级部门的重视。在庆功大会上,“999”号机车全体工作人员赢得了“英雄司机”的称号。。After Hassan, a Tunisian mechanic, starts spying on Mara, a young substitute teacher waiting to leave for Brazil, she drives him away but then begins to date him. Aspiring journalist Giovanni observes the development of their disturbing relationship, but soon his life also gets turned upside down.。