 More than a half-century after the events of  Alien , Warrant Officer Ripley - the sole survivor of the Nostromo - is discovered adrift in the shuttle she used to escape. By now, the Company - Ripley s employer - has colonized the planet where the alien was found. Intent on covering up its illegal actions of years before, the Company strips Ripley of her flight officer s license. But when transmissions from the colony stop without warning, she is called into action again - this time with a group of Space Marines. Now the alien menace is hundreds of times larger, more insidious, and all but invincible. The sole survivor of the Nostromo re-enters a world of sudden, unspeakable horror - one that attacks without warning again and again and again.