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.
The government sends caravans to Miao villages periodically to provide goods which facilitate the folks. A detachment protects the caravans from robbery.
The film depicts the lives of Guangdong peasants who have gone through the suffering of the Sino-Japanese War only to experience home-grown oppression by a rapacious landlord in their village.