Venture, a direct rival to the Weyland-Yutani corporation, will accept any risk to crush the competition. Thus, when a corporate spy "acquires" a bizarre, leathery egg from a hijacked vessel, she takes it directly to the Venture testing facility on Jericho 3. Though unaware of the danger it poses, the scientists there recognize their prize's immeasurable value. Early tests reveal little, however, and they come to an inevitable conclusion. They need a human test subject.... Enter Zula Hendricks.

The product of a troubled and violent youth, Amanda Ripley is hellbent to discover what happened to her missing mother, Ellen Ripley. She accepts an assignment with a Weyland-Yutani team being sent to retrieve the Nostromo flight recorder from space station Sevastopol, which they find out of control due to a Xenomorph that was brought there with the recorder. A conspiracy unfolds, revealing ever greater threats - including an entire Xenomorph hive.

The Covenant mission is the most ambitious endeavor in the history of Weyland-Yutani. A ship bound for Origae-6, carrying 2,000 colonists beyond the limits of known space, this is a make-or-break investment for the corporation - and for the future of all mankind. Yet there are those who would die to stop the mission. As the colony ship hovers in Earth orbit, several violent events reveal a deadly conspiracy to sabotage the launch.

300 ans après les événements d'"Alien - La Sortie des Profondeurs" et "Alien - Le Fleuve des Souffrances", "Alien - La Mer des Désolations" retrace la redécouverte des Xénomorphes (Aliens) en état de sommeil dans les mines abandonnées de LV-178, le planétoïde d'"Alien - La Sortie des Profondeurs", désormais transformé et renommé New Galveston. La Weyland-Yutani Corporation, réformée après l'effondrement de l'armée du système des Nations Unies, poursuit ses efforts incessants pour armer les créatures.

As a child, Chris Hooper dreamed of monsters. But in deep space, he found only darkness and isolation. Then, on planet LV178, he and his fellow miners discovered a storm-scoured, sand-blasted hell - and trimonite, the hardest material known to man. When a shuttle crashes into the mining ship Marion, the miners learn that there was more than trimonite deep in the caverns. There was evil, hibernating and waiting for suitable prey.