Vietnam veteran and drifter John J. Rambo (Sylvester Stallone) wanders into a small Washington town in search of an old friend, but is met with intolerance and brutality by the local sheriff, Will Teasle (Brian Dennehy). When Teasle and his deputies restrain and shave Rambo, he flashes back to his time as a prisoner of war and unleashes his fury on the officers. He narrowly escapes the manhunt, but it will take his former commander (Richard Crenna) to save the hunters from the hunted.
Repairmen Val McKee (Kevin Bacon) and Earl Bassett (Fred Ward) are tired of their dull lives in the small desert town of Perfection, Nev. But just as the two try to skip town, they happen upon a series of mysterious deaths and a concerned seismologist (Finn Carter) studying unnatural readings below the ground. With the help of an eccentric couple (Reba McEntire, Michael Gross), the group fights for survival against giant, worm-like monsters hungry for human flesh.