Synopsis
Scarlet Witch remembers and regrets she and her twin Quicksilver being rescued as teenagers by Magneto. For a long time they thought he was their father, but Wanda discovered during Axis that it wasn't true. Now they have come to Counter-Earth to seek answers from the High Evolutionary. But he has them captive in forcefields.
He describes them as his failures, and Wanda jumps to the conclusion that he's their real father. But he quickly denies that. Instead he says he took them from their gypsy parents Django and Marya Maximoff to attempt genetic alterations. But he was unhappy with the results and returned them to the Maximoffs, where they grew up thinking they were mutants. Since then he has created a new better daughter Luminous (whom they fought last issue) with both their powers.
Said daughter is leading a troop of evolved rhinos, warthogs, etc against HE's son the Low Evolutionary and the reject New Men he's saved from HE's regular cullings. Part of her team is Sabretooth wearing a control collar. Which suddenly switches off, allowing him to come to his senses. He disposes of the dog New Man holding his leash, and smashes his collar in case it comes on again.
The heroic (since Axis) mutant takes stock of the situation, figures that the animals with the big guns killing indiscriminately are probably the bad guys, and slashes their leader Luminous. Then he saves the LE from a warthog and dives into the fray.
Meanwhile in the Ghost Town Temple Brother Voodoo is communing with the spirits of culled New Men. Some of them want deliverance, and he could send on to paradise. Others want revenge, and he could give them material forms to attack the living. But the power in this place will only allow him to effect 1 spell, and they must choose as a group which 1.
Meanwhile (again) Pietro and Wanda are brought to the evolved-bird scientist who has been experimenting on Rogue. The twins break free from their robot guards, and set Rogue free too. She wants to know what the bird-guy has done to her such that she can't hear Simon Williams in her head anymore. I think birdy suggests that she will now have Wonder Man's full ionic powers. But Quicksilver KO's him, on the grounds that Wanda will be able to bring Simon back as she's done before.
The twins came to Counter-Earth alone, but they aren't too surprised to see Rogue because they've already seen Sabretooth. Rogue tells them she assembled a team to come after them. As well as Sabretooth and Brother Voodoo there's also Captain America (Sam Wilson) and Vision, but they got split up.
They try to break out of the lab, but even Rogue can't break the door down. But then it just opens, and Scarlet Witch senses the work of her ex-husband Vision.
Vision met another android dubbed Eve in #1, and they generated a batch of offspring last issue. It was indeed he who sneaked into High Evolutionary's computer network and opened the door. But Eve tells him that she knew he did that, and she actually smoothed the way for him. But now he must choose between his old loyalties to humans and his new loyalty to his android family. The HE learned about their children last issue, but Eve doesn't trust him so they must leave this world.
Sabretooth is still fighting Luminous and her New Men when she does something to age him - a lot. But HE arrives and tells his daughter he wants Victor Creed kept alive. They return to purging Lowtown, and Quicksilver turns up just in time to stop HE killing Low Evolutionary. Wanda and Rogue join them, and HE is interested in Rogue's ionic powers.
HE raises a load of tree beings as he did in #2. Once again 1 of them is Sam Wilson, who got turned to wood in #1. But this time Cap rebels, raises his shield and shouts "Avengers assemble".