Hot-tempered Greek immigrant Andreas arrives in America in 1915. He finds work on a railroad, but soon gives his corrupt foreman Mekakis a savage beating. Making his way west across the country, Andreas eventually comes upon another railroad looking for workers. It turns out Mekakis has gone westward, too. He offers Andreas the only job suitable for him, a "mountain mover" on the suicide squad: He must grapple down the face of a cliff, position sticks of dynamite and then climb back up again before the lit fuses reach the explosive.

The alien criminal from the first movie is dead, but he left a few eggs which are hatching now. The good alien, who still inhabits Tom Beck's body, has been waiting just in case this happened. Unfortunately, his presence in the body has taken a terrible toll on it, draining it of life energy. Additionally relations with Beck's daughter Juliet (now a cop) have deteriorated. But when the killing starts again, they will need to work together to stop the new generation of aliens.

A disgruntled ex-CIA operative, his assistant and their assembled group of terrorists seize a battleship with nuclear blackmail in mind. They've planned for every contingency but ignore the ship's cook, former Navy SEAL Casey Ryback—an error that could be fatal.

A new technologically-superior Soviet nuclear sub, the Red October, is heading for the U.S. coast under the command of Captain Marko Ramius. The American government thinks Ramius is planning to attack. Lone CIA analyst Jack Ryan has a different idea: he thinks Ramius is planning to defect, but he has only a few hours to find him and prove it - because the entire Russian naval and air commands are trying to find Ramius, too. The hunt is on!