Colossus is reunited with his long lost brother, Mikhail, who he thought was dead. He learns his brother is the actual savior and at what cost he earned the title the first time he sealed the void. But he must do it again but he can not as both he and Colossus come to odds with each other. But Colossus must seal the void to stop the destruction of both worlds. Meanwhile, Archangel leads his forces into battle as they set a trap for the rebels as he runs into Jean, Storm and the late arriving Sunfire and Iceman. But Warren is under the influence of the Avatar and strikes at his own friends as Jean manages to bring him around. In a desperate attempt, the X-Men work together to seal the void and return back to Earth.