Astonishing X-Men #4

In "Unstoppable [Part One]," Jo and the X-Men—joined by Hisako, Ord, and Danger—race against time aboard S.W.O.R.D.'s ship as a deadly prophecy looms: Colossus is the only one who can stop the Breakworld’s missile aimed at Earth. With Agent Brand’s urgent mission and the threat of Powerlord Kruun closing in, the team faces a desperate battle for survival when their ship is destroyed, leaving them stranded in the void.

In "Unstoppable Part Two," the X-Men and S.W.O.R.D. face a dire crisis as their ship disintegrates, forcing a desperate evacuation. With Colossus haunted by a troubling prophecy and the team scattered, they converge on a mysterious tomb where a massive stone mosaic reveals a chilling vision of Colossus destroying Breakworld and its sun—leaving the truth of his fate uncertain.

In "Unstoppable Part Three," Wolverine and Armor join forces with the rest of the team as they navigate the mysterious Breakworld base. With the group split across different paths—Beast and Agent Brand chasing clues beneath the moon, Cyclops and Emma hunting S.W.O.R.D. soldiers, and Wolverine and Armor searching for Colossus and Shadowcat—the tension mounts as hidden alliances surface and danger lurks around every corner.

In "Unstoppable Part Four," the X-Men press forward on a moon that’s not what it seems—a massive, hidden weapon poised to strike Earth. Emma offers Danger a chance to break free from her programming, while Kitty shares a quiet moment with Piotr about seizing joy. As the team unites for the final assault, Scott makes a desperate sacrifice, leaving his fate hanging in the void.

In "Unstoppable Part Five," Aghanne and Dafi weigh their uncertainties as the X-Men and S.W.O.R.D. press forward toward their next objective. With Cyclops revived by Kruun for interrogation, Armor and Wolverine captured, and Beast and Agent Brand unraveling a sudden, ominous prophecy, Emma Frost reconnects with Scott—only to discover the prophecy may not be a warning, but a meticulously laid plan.

In "Unstoppable Part Six," the X-Men push forward with their final stand as Ord confronts Aghanne and Colossus is ordered into the power source—where he discovers Aghanne may have planned his destruction all along. Meanwhile, Beast and Shadowcat struggle to understand the mysterious projectile, only for Shadowcat to phase deep inside and realize too late that it’s not a missile, but a bullet hurtling toward Earth with her trapped at its core.

In "Gone," Colossus faces a desperate choice inside the Breakworld reactor, torn between his metal form and the humanity he's fought to preserve, while outside, the X-Men and Agent Brand’s team battle relentless invaders. As the stakes rise, a sudden intervention forces a shocking reckoning, and Shadowcat’s fate hangs on a single, impossible decision—her connection to a bullet that may be her only way out.