A group of cyborg mercenaries, led by a woman from Wolverine's past, seek his forced help in unlocking the secrets of a long buried alien spacecraft.

An alien being called the Spirit Drinker drains the life-force of Jubilee and the Reavers, making strained allies of Wolverine and Lady Deathstrike.

Following visions from recent dreams, Professor Xavier sends his X-Men on a mission to the Eagle One Space-Station, putting them in the middle of an interstellar conflict.

The X-Men barely survive their return trip from space, Jean Grey discovering herself changed by the experience. Professor Xavier's dark half is given form, and proceeds to attack his students.

Professor Xavier's claims of the capture of his alien soulmate Lilandra by Juggernaut and Black Tom Cassidy are met with skepticism.

Lilandra seeks to protect the M'Kraan Crystal from her wicked brother, the Emperor D'Ken. But the interstellar pirates known as the Starjammers capture it, and Cyclops, in an effort to enact their own revenge scheme on the emperor.

Shi'ar Emperor D'Ken's rise to power via the M'Kraan Crystal is causing a universal implosion. The X-Men, Imperial Guard, and Starjammers find themselves overpowered and unable to stop it. Jean Grey must unleash her destiny as the host of the Phoenix, even at a most personal cost.

Cyclops, still in mourning after Jean Grey's "death", quits the X-men and returns to his orphanage home and encounters his friend Sarah. She tells him that a wealthy man has decided to adopt all the mutant children, especially Rusty, but his intentions are to make them his army to destroy all humans in the world so that mutants are accepted. It's up to Cyclops to stop him and save the mutant children. Later, Cyclops returns to the mansion and he and the other X-men discover that Jean Grey hasn't died after all.

Fueled on by his desire to seek vengeance against the immortal mutant that changed him into a weapon of evil, Archangel persaudes Rogue into helping him hunt down and destroy Apocalypse.

Longshot, a rebel from another world, tumbles into this world with no memory and a murderous gang led by the six-armed woman warrior Spiral hot on his trail. It turns out that Longshot is on the run from Mojo, maniacal inter-dimensional TV executive. Using Jubilee as the 'prize', Mojo and his minions lure Longshot and the X-Men into a deadly contest which Mojo broadcasts 'live' to up his ratings.

A founding member of the X-Men, named Iceman, breaks into a government facility. He refuses to trust his former teammates about his reasons for doing so, but when Jubilee aids him in his quest, it leads to the team going up against another group of mutants, known as X-Factor.

Mutant-draining, pterodactyl-man Sauron is persuaded into capturing Storm by Zaladane, the high priestess of Savage Land Sun God Garokk, unaware of her ulterior motives for unleashing the mutant's full potential.

Storm's unfettered weather-fury continues setting the stage for the rise of Garokk. Even if Storm can be brought back under control, the Sun God's geothermal rejuvenation will spell an end to the Antarctic paradise known as the Savage Land.

The flirtation between Cyclops and a mutant singer named Dazzler exacerbates the Phoenix-controlled side of Jean Grey, leaving her open for manipulation by a secret sect of mutants coveting her immense powers for their own evil designs.

The Circle Club makes the Phoenix-controlled Jean Grey their new Queen, but finds two factors opposing it: her mental bond with Cyclops, and the presumed-dead Wolverine stalking after them.

As the Dark Phoenix grows increasingly hostile, even destroying an entire star system, the X-Men struggle to figure out a way to stop her without harming their teammate Jean Grey.

The X-Men face the Shi'ar Imperial Guard in a trial by combat to spare the life of Jean Grey, though even they begin to question the safety of the universe as long as the Dark Phoenix remains alive inside her.

Cyclops discovers that Corsair, the leader of the interstellar band of pirates known as the Starjammers, is his father. He's a fugitive on the run from the Shi'ar empire, and seeks his help in proving his innocence. But can the man who abandoned him as a child truly be trusted?

Professor Xavier's step-brother, and sworn enemy, the Juggernaut loses his powers to a bumbling archeologist. He must overcome the pain of their childhood together, and have the powers restored to him to save his life.

The former Soviet Union's living weapon, Omega Red, is thawed out by the US Military to deal with an abandoned Soviet nuclear submarine near Hawaii. He asks for his old enemy, Wolverine, and the woman responsible for freezing him most recently, Storm, to accompany him on the mission. Omega Red is offered restored humanity, but once aboard the warhead-filled sub, he reveals his true, deadly intentions.

Magneto builds a home strictly for mutants on the orbiting base known as Asteroid M. The message goes out worldwide of initial exodus, and he finds just as many eager to join him, as those anxious to destroy him.

With Magneto seemingly dead, Fabian Cortez takes over Asteroid M, and initiates a nuclear war with Earth. The X-Men attempt to sabotage his warhead stockpile, and rescue Gambit, finding assistance in the most unlikely of places.

Trapped on the astral plane after suffering a concussion, Professor Xavier is at the mercy of the Shadow King, and in desperate need of help from his X-Men, who are unable to hear him.

Morph feels he's finally ready to return to the X-Men. But his homecoming is interrupted by the return of the Sentinels, the robotic mutant-hunters who nearly killed him the last time he faced them. Will history repeat itself?

Cyclops heads solo to the desert town of Skull Mesa, where humans and mutants live in harmony, to visit an old mentor from his youth. But he not only finds himself powerless when he arrives, but discovers the place under the rule of a maniacal mutant, with none of the citizens willing to take a stand.