The film follows Sylvester Stallone as "John Rambo," a Vietnam War veteran who discovers that his last surviving comrade from their special forces unit has passed away due to cancer. He’s drifting around, seemingly looking for something simple like a cheeseburger, when the sheriff, "Will Teasle" (Brian Dennehy), runs him out of town, misinterpreting him as someone without a place to belong. An attempt to return results in his arrest, triggering a series of events that lead him into conflict with local police and eventually the national guard, along with his former commanding officer, "Trautman" (Richard Crenna). There's an underlying theme about how this man, decorated for his service—even receiving a Congressional Medal of Honour—has been largely forgotten by those he served. It becomes apparent early on that he’s deeply affected by what he experienced in the war, and the harsh treatment from the local police brings back dormant skills in self-defense, which quickly turn into offensive actions. The action sequences filmed in the cold, wet forest are well-executed and hold your attention, but unfortunately, the performances aren't great. Crenna seems stiff, much like the stakes "Rambo" uses to trap his pursuers, and the character of "Teasle" is confusing. Initially, he’s portrayed as a friendly local officer, but after a brief encounter with Rambo, he abruptly transforms into an intensely hostile man. There's no explanation for this shift—and as the chase unfolds, the plot becomes increasingly illogical. The movie is relatively short; the beginning is promising, but it descends into absurdity, culminating in a finale filled with flashy explosions that offer little beyond hinting at another installment.

Source on TMDB