Sabretooth, recruited from a cell in the complex, joined with Banshee to save Emma Frost and Jubilee. When Banshee discovered the Phalanx had accessed the location of several young mutants for use in further study, he alerted Wolverine and Cable. In turn, they recruited Cyclops and Jean Grey. Professor X, Excalibur, X-Factor and X-Force sought the location of a third, unknown, group of Phalanx. To prevent the Phalanx from accessing any further information, Banshee destroyed the knowledge base. While Banshee's group scrambled to save the young mutants, they were followed closely by the Phalanx impersonating several beings, notably police officers. The group was joined by the mutant Synch that could copy powers which proved helpful as Banshee's screams easily subdued many Phalanx entities. The rest of the targeted mutants were being held by Harvest in an old, decommissioned battleship and disguised itself as Gregor, an imprisoned farm boy-type mutant. The disguise was suspected by some of the prisoners. Eventually, the group saved all the targeted new mutants except for Blink having sacrificed herself to save the rest and killing Harvest. The rest of these young mutants went on to become the core of Generation X, tutored by Banshee and Emma Frost. Meanwhile, the other mutant teams found a group of Phalanx attempting to follow their genetic instruction to construct a Babel Spire to contact the Technarchy. Douglock led a small team consisting of Forge, Wolfsbane and Cannonball in destroying the spire. Cyclops' group assaulted the core Phalanx base on Mount Everest, where the X-Men were held. They were covertly assisted by Lang having realised the Phalanx had grown beyond his ability to manipulate and were threatening the general human population. The smaller Phalanx nests around the world were destroyed as a result of this confrontation. Much later it was revealed that before the Phalanx Covenant happened, Mister Sinister managed to capture one member of this techno-organic race and experimented upon it in order to clone himself into the single-minded collective. As Sinister experimented on it, the Phalanx member lost the mental link to its brethren. When Sinister eventually succeeded, he destroyed the lab and everything inside, including most of this being. A scrap of it remained and combined with earthworms, which didn't have minds, so they simply added to its physical makeup, growing and growing slowly. Upon surfacing, it attempted to link up with the Phalanx, but was too weak.