1942年抗战时期，三个年轻的猎户战狼桩子和冬儿正在围猎一头野猪，他们把野猪收拾好了烤肉，战狼想着拿着猪胆给老刀叔治疗手伤。这时，他们碰到了突击队和日本军队交火，本来是日本人进入埋伏圈，游击队想要截获日本军的毒气原料时，另一伙青木带着的日本军赶来，眼看游击队就要吃亏，三人迅速帮忙救下了游击队的王爱，同时也罢毒气原料拿了回来。日本军队恼羞成怒准备对在村子里展开屠杀，战狼三人带着村民顽强抵抗的时候被俘，在地下党何医生的帮助下逃脱。

在兵工厂逃跑时战狼带走了一个哑巴，但是此人却是日本特务，特务准备通过他们寻找毒气原料的下落。渐渐地，战狼和王爱互相产生爱意，但是王爱再一次行动中被捕了。战狼看到了他的杀父仇人青木，冲动的想要暗杀青木。

During the Anti-Japanese War in 1942, three young hunters Zhanlang Zhuangzi and Donger were hunting a wild boar. After packing up the barbecue, Zhan Lang thought about taking the pig gall to treat Lao Dao Shu's hand injury. At this time, they encountered a firefight between the commando and the Japanese army. It turned out that the Japanese entered the ambush circle. When the guerrillas wanted to intercept the poison gas raw materials of the Japanese army, another group of Japanese troops led by Aoki came. At a disadvantage, the three quickly helped rescue Wang Ai of the guerrillas, and at the same time brought back the raw materials of the poisonous gas. The Japanese army became angry and prepared to massacre the village. The three warriors were captured when they led the villagers to resist tenaciously, and escaped with the help of Dr. He, an underground party.

When fleeing from the arsenal, the wolf took away a mute, but this man They are Japanese spies, and the spies are going to use them to find the whereabouts of the poison gas raw materials. Gradually, Zhan Lang and Wang Ai fell in love with each other, but Wang Ai was arrested in another operation. Zhan Lang saw his father-killing enemy Aoki, and impulsively wanted to assassinate Aoki.