The X-Men Omnibus #1

In their first mission together, the X-Men—Professor X, Cyclops, Marvel Girl, Angel, Iceman, and Beast—face their greatest challenge yet: stopping Magneto from seizing control of an Air Force base. With Jean Grey still adjusting to life at the school and tensions rising, the team must put their training to the test before the situation spirals beyond their reach.

"No One Can Stop the Vanisher!" pits the X-Men against a mysterious new threat: the Vanisher, a mutant whose teleportation powers make him nearly impossible to track. As the team scrambles to protect sensitive military secrets, tensions simmer—especially between Iceman and Cyclops, whose rivalry flares under the strain of Marvel Girl’s divided attention.

In "Beware of the Blob!", the X-Men are sent to investigate a mysterious new mutant, leading them to a traveling carnival where they meet the Blob—a towering, immovable sideshow act whose thick, elastic body defies bullets and gravity. Though the team hopes to recruit him, the Blob rejects their offer and returns to the carnival, forcing Xavier to take drastic measures to protect their secret.

In "The Brotherhood of Evil Mutants!", Magneto and his newly assembled team—Mastermind, Toad, Quicksilver, and the Scarlet Witch—seize a freighter and launch a bold takeover of the South American nation of Santo Marco. The X-Men, led by Professor X, Cyclops, Marvel Girl, Angel, Iceman, and Beast, launch a daring mission to reclaim the country, but when the battle erupts, Xavier is caught in a devastating explosion that shatters his telepathic abilities.

In a tense test of trust and leadership, the X-Men face their greatest challenge yet when Professor X’s powers vanish—leaving the team to navigate a crisis without his guidance. With Magneto manipulating events from the shadows, the Toad’s shocking victory at a public athletic event sparks chaos, forcing the X-Men into a high-stakes rescue mission on Asteroid M. When the team finally returns to Earth, Xavier reveals the truth: the entire ordeal was a carefully orchestrated trial to see if they could stand on their own.

In "Sub-Mariner! Joins the Evil Mutants," Namor is drawn into a clash of ideologies when Magneto invades his underwater kingdom with an offer to join the Brotherhood of Evil Mutants—sparked by a shared belief in mutant supremacy. Enchanted by the Scarlet Witch’s powers and swayed by Magneto’s vision, Namor hesitates, but when the X-Men arrive to stop the invasion, he must decide where his true allegiance lies.

In "The Return of the Blob," the X-Men prepare to graduate from Xavier's school when Professor X announces he's taking a leave of absence, entrusting Cyclops with leadership and revealing his new mutant-detecting device, Cerebro. Meanwhile, Magneto tracks down the Blob, offering him a place in the Brotherhood, but a sudden clash triggers a forgotten memory—something the Blob had long buried about the X-Men. When his name flashes on Cerebro, Scott calls the team back to face the Brotherhood, only to find the Blob caught in the crossfire as Magneto fires missiles, forcing him to choose between loyalty and the life he once left behind.

When Beast leaves the X-Men after a violent encounter with a mutant-hating mob, he trades his lab coat for a wrestling ring — but his path crosses Unus, a mutant whose power makes him untouchable. Drawn into a clash with the X-Men, Unus seeks to join Magneto’s Brotherhood, only to find himself caught in a dangerous experiment by Beast, who’s built a machine meant to amplify his abilities. As the team races to stop the device from unleashing unforeseen consequences, Unus discovers his power has a shocking new twist — one that leaves him unable to even hold food.

When Professor X tracks down Lucifer in Bavaria, he discovers the fallen angel’s heartbeat is tied to a massive thermal bomb—destruction hinges on a single pulse. The X-Men arrive just as the Avengers, led by Thor and Captain America, close in, forcing a tense standoff: stopping Lucifer means saving the world, but only if the X-Men can act before the Avengers’ intervention triggers the detonation. With Xavier unconscious and the bomb ticking, Cyclops must find a way to disable it—alone, and with the Avengers watching.

When the X-Men journey to Antarctica and into the hidden Savage Land, they’re drawn into a world of primal danger and ancient rituals. Though Ka-Zar isn’t a mutant, Professor X trusts the team to uncover the truth behind the noble savage—only to find Jean and Warren in peril at the hands of the savage Swamp Men.

In "The Triumph of Magneto!", the X-Men are sent to investigate a mysterious entity on Earth, only to find themselves caught in a clash between Magneto and the Brotherhood, the Stranger, and their own evolving understanding of alien intentions. As the Stranger reveals his true nature and his unsettling mission to gather mutants across the cosmos, the lines between ally and adversary blur—especially when Magneto and Toad are taken aboard his ship, leaving the X-Men to grapple with the implications of a universe far stranger than they imagined.

In a tense moment at the X-Mansion, Professor X prepares his students for an imminent threat, revealing the origins of his step-brother, Kurt Marko, and how a lifetime of torment forged the unstoppable Juggernaut. As the mansion’s defenses strain under an unknown attacker’s assault, Xavier shares the painful truth behind his brother’s transformation — a story of loss, power, and the fragile line between man and monster.

When the Juggernaut storms the X-Mansion, the team faces their most relentless foe yet—Professor X’s unstoppable half-brother. With Cyclops, Marvel Girl, Angel, Iceman, and Beast holding the line, the arrival of the Human Torch adds a fiery boost to the fight. Can Xavier’s mind still reach through the chaos and stop the Juggernaut’s unstoppable march?

In "Among Us Stalk... the Sentinels!", the X-Men are on vacation when Professor X calls them back after Dr. Boliver Trask unveils a terrifying new threat: the Sentinels. These advanced robots, designed to hunt mutants, declare themselves the next stage of evolution and immediately turn on humanity. With Trask captured by his own creations, the team races to track down the Sentinels’ hidden base, only to discover a complex bristling with weapons aimed straight at them.

When the X-Men launch a daring raid on the Sentinel's hidden fortress, they’re swiftly overwhelmed and imprisoned. Trapped and facing the cold logic of the artificial intelligence Master Mold, Beast becomes the target of a terrifying mental probe—while outside, the sinister architect Bolivar Trask prepares to unleash a new era of machine dominance.

In "The Supreme Sacrifice!", the X-Men are captured, leaving Professor X to confront a fallen Sentinel and uncover its sudden halt. As the team fights to escape, they face overwhelming odds—until Xavier’s intervention and a shocking act of sacrifice from Dr. Trask turn the tide against the relentless Master Mold.

In the wake of a brutal Sentinel attack, the X-Men are scattered—some injured, others missing. When Angel returns to the mansion to face his parents’ visit, he’s ambushed by a stranger, setting off a chain of assaults that leaves the team reeling. As Professor X and Cyclops rush back to investigate, they too fall victim to a hidden enemy, leaving Jean and Beast as the last defenders—only to be overpowered. When Warren’s parents arrive at the mansion, they’re met not by their son, but by Magneto, who stands in the shadows with a chilling calm.

When the X-Men are captured and Magneto holds Warren Worthington III’s parents hostage, Iceman must step up alone to face the powerful mutant mastermind. With Professor X’s telepathic call to the Stranger drawing an alien threat into the fray, the fate of the team—and Warren’s family—hangs in the balance.

In a tense showdown at a remote mine, the X-Men face off against Calvin Rankin, a young man whose ability to mimic their powers leaves them outmatched. After a clash that reveals his deep connection to their team, Calvin seeks Jean Grey’s help, hoping to join them—only to turn on the X-Men when he fully absorbs their abilities. As the team tracks him to his hidden lair, they uncover a device built by his father, one that could permanently lock in his powers. But when Professor Xavier offers a different path, the truth about Calvin’s past and his future begins to unfold.

In "Divided—We Fall!", the X-Men’s attempt at a peaceful vacation in Central Park takes a sinister turn when they’re lured into confronting twisted, phantom versions of themselves. Drawn into a trap by Count Nefaria’s elaborate scheme, the team is captured and brought to his fortress, where they face off against a dangerous alliance of villains—including Plantman, Scarecrow, Porcupine, Eel, and Unicorn—each with their own agenda. With their unity tested and their minds fractured, the X-Men must find a way to resist Nefaria’s manipulations before it’s too late.

In "We Must Destroy... the Cobalt Man!", the X-Men take a rare break from their duties, only to find themselves pulled into a crisis when a former Stark employee dons a high-tech suit and spirals into chaos. With the team racing to stop the unstable Cobalt Man before his suit detonates, old alliances are tested and tensions rise as the line between hero and threat blurs.