A group of world leaders awakens a creature beneath the ocean floor, and mankind's only hope rests on an alliance between the giant ape and his mechanical arch-nemesis.
Siblings Kristy and Jeffrey are buying supplies at a remote desert gas station when some members of a biker gang come cruising in. The bikers recognize Kristy, who used to be the main squeeze of the gang’s leader before she ran away. The pair get away, but the bikers find out that they’re living in a nearby commune, and start making their battle plans to bring Kristy back
退伍军人兰博（西尔维斯特•史泰龙Sylvester Stallone 饰）从越南回国，他回到已显得陌生的原居小镇，当地警长（布莱恩•丹内利 Brian Dennehy 饰）看到这个退伍军人的第一眼起，就开始对兰博百般挑剔，甚至将他带回警局肆意侮辱，不堪忍受责打的兰博袭警之后逃跑。警长召集大批警察展开对兰博的追捕，兰博逃至荒山野林之中，不断用自己在越战中掌握的游击战术对警察展开反击，他抢劫了一辆武器运输车返回小镇烧毁了商店，法律和武器都不能阻止兰博了。兰博在越战时的长官上校（理查德•克里纳 Richard Crenna 饰）出现，劝说兰博放下枪械，愤懑已久的兰博吼出了自己的困惑与不甘……
