Soldiers stay in Hainan Island and fight Japanese invaders in harsh conditions.
To restore communications to the island of Hainan, the People's Army sends scouts across the Palm Grove Strait to the Leizhou Peninsula, where the detachment radio station was located.
Wang Jiayou, a young worker at the Shanghai New Machinery Factory, is a man whose life is unorganized, does not pay attention to labor discipline, and often spends his youth in dance halls, skating rinks and cafes. When working during the day, he appears listless and often has accidents.
