A football player and his mates travel to the planet Mongo and find themselves fighting the tyranny of Ming the Merciless to save Earth.
A group of armed robbers fleeing the police head for the New Jersey Tunnel and run right into trucks transporting toxic waste. The spectacular explosion that follows results in both ends of the tunnel collapsing and the handful of people who survived the explosion are now in peril. Kit Latura is the only man with the skill and knowledge to lead the band of survivors out of the tunnel before the structure collapses.
Ripley, the sole survivor of the Nostromo's deadly encounter with the monstrous Alien, returns to Earth after drifting through space in hypersleep for 57 years. Although her story is initially met with skepticism, she agrees to accompany a team of Colonial Marines back to LV-426.