Fantastic Four #415
Onslaught is after Franklin Richards, under the disguise of a young boy named Charlie. Some of the Avengers, plus Iceman and Bishop, arrive at the FF HQ to warn them, but it is too late as Onslaught has already infiltrated the building. He destroys them all in battle, and takes Franklin with him which is a whole lot of power for him to have his hands on.
Apocalypse observes all of this with Uatu, The Watcher:
Apocalypse out here just chillin with major Galactic characters.
[Excalibur #100
London is still out of control due to the unleashing of the demon, people killing each other and buildings all up in flames. Excalibur arrives, and Wisdom chases after Scratch, his former psycho partner. Daytripper arrives at Muir to tell Moira that her step-mother Margali is behind the London madness. They are joined by the X-Men who come to let her know that Charles has gone insane. She shows them the secret Xavier protocols. These are different way to kill the X-Men in case they go insane, including himself.
At the Hellfire Club Brian Braddock, in his new Captain Britain suit, faces Ms Steed and Mountjoy. Thanks to his suit's improved force-field, Captain Britain survives and stops Mountjoy before he steals another body. Elsewhere, Wisdom and Scratch continue to battle it out, and Scratch almost wins - until Lockheed the dragon comes to Wisdom's rescue. The other Excalibur members attack the Black Air building. After several battles they find Douglock and are joined by the weakened Amanda who has a plan to end the madness. With Kitty's computer skills and Amanda's magic they free Douglock and bind the demon in his prison, before Margali fades away screaming, and Excalibur are reunited, after saving London.
X-Men v2 #55
Onslaught just did major damage. @evoljeanyes Idk how you could say this dude is overrated yo.
The Avengers, Fantastic Four, as well as Bishop and Iceman, stand atop Four Freedoms Plaza as a witness to Manhattan’s destruction. The teams await Ant Man, Wasp, Gambit, Rogue and Magneto, who is now calling himself Joseph. They all head towards the battle, as hundreds of Sentinels attack New York. A handful of the most intelligent of the group stay behind to prepare offensive weaponry to better take on Onslaught. Suddenly, atop a huge Ebony Citadel, made from the powers of young Franklin Richards, Onslaught blasts the Sentinel’s attackers to the ground. Even the approaching Blackbird is not left unscathed, as the passengers on board plummet to the ground. Below the citadel, Magneto stirs from the rubble. With a look of anger, he tells them that Onslaught has made his first opening statement.
A couple cool screenshots from this one:
Onslaught Saga is heating up! Hope to read most of it tonight.
Uncanny X-Men #336
Almost all of the heroes gather in New York to fight the madness that Onslaught has created. Meanwhile, Xavier & Franklin Richards are trapped within the psyche of Onslaught, and therefore he has the power of both of them, which even begins to change his appearance. Cyclops, Invisible Woman, Storm, Cable, Thor, Gambit and Rogue regroups and Thor is able to rip Xavier out. This, however, makes Onslaught more powerful, as he is now free of Xavier. He unleashes a psionic storm that would have killed the heroes had Cable and Sue not used their powers to protect them all. Sue asks Xavier if he can sense if Franklin is alive, but Charles shocks them all when he reveals that his telepathic powers no longer work! Apocalypse & The Watcher still observe from afar.
Cable #35
Apocalypse finally steps into the field of play and confronts Cable & Sue Richards with a plan to free Franklin from Onslaught via a trip to the Astral Plane, which Cable has to ability to go to. They obviously don't trust him, but go through with it anyway in order to save her son. Of course, when they arrive Apocalypse betrays them and proceeds to try to kill the boy believing him to be a future threat, but Sue Richards prevents it and Onslaught sends them away. Apocalypse teleports away, pissed off as fukk.
Avengers #402
The Avengers team is attacked by Holocaust and Post in order to retrieve some psi-armor that Iron Man built that is a potential threat to Onslaught. It seems as though the Avengers are in a hopeless situation, but through Captain America’s ingenuity and the brute strength of every member, the Avengers lay waste to both of the villains and restore order to New York for the time being.
The Incredible Hulk #445
Hulk rendezvous with the Avengers and argues with Cap about attacking Onslaught head on. He manages to convince Falcon, Hawkeye, Vision & Crystal to come with him. Unfortunately, Onslaught notices them on their way and plays out a scenario in all of their minds where they all die except Hulk, who defeats them and could care less about the rest of them. Afterwards, they all head back distrusting Hulk once again.... oops?
As the Fantastic Four, X-Men & Avengers regroup to plan out an offensive against Onslaught, other characters fight the Sentinels/chaos on the street level (Iron Man, Wolverine, Punisher, Green Goblin, Spider Man, etc).
X-Man #19
Sinister, after kidnapping Nate, tries to use his way with words to convince Nate that his side is where he must stay in order to win this war. Of course Nate won't listen, and then he begins to hear a quiet cry in his brain (which is Franklin Richards). Sinister tells his to block it out as it is a trap, but Nate doesn't listen and is suddenly taken by Onslaught. Sinister is left behind to SMH/Facepalm.
The Conclusion
Fantastic Four #416
It starts out with Nathanial Richards warning the team that if they do not flee this fight, they will all die, as he has seen the future. Then, Onslaught manipulates Franklin Richards into sending images, though they are real to the touch, of all of Fantastic Four's enemies to attack them (Annihilus, Blastaar, Dragon Man, Mad Thinker, Malice, Tyros the Terrible and Wizard). They are defeated quite easily with the help of some old friends who show up, as well as some enemies who are allying with the FF. These include Fantastic Force, The Inhumans, Agatha Harkness, Alicia Masters, Namor, Puppet Master, She-Hulk and most notably Dr. Doom!
X-Men v2 #56
Rogue and Joseph/Magneto are about to be killed by a Sentinel, if not for Doctor Doom showing up. He's kind of disgusted with Magneto, and he pops mad shyt about Onslaught.
As the Avengers/X-Men prepare for their final strike, Professor X confronts Onslaught on his own, who now has absorbed the powers of Nate Grey as well.
Onslaught: Marvel Universe
Heroes, Mutants & Villains alike gather for the final stand against Onslaught:
The heroes fought valiantly, eventually relying upon the ultimate force of the savage Hulk to break through Onslaught’s armor. However, this all proved to be a ruse, as Onslaught’s armor gave way to reveal pure, malevolent psionic energy, which would consume the planet if not for the ultimate sacrifice of many of Earth’s greatest heroes. The Fantastic Four, Avengers, Namor, Doctor Doom, and Bruce Banner threw themselves into the energy, hoping to contain it. They succeeded, at the cost of all their lives. Nate Grey and Franklin Richards were rescued from the monster, and only the X-Men remained (as mutants could not enter the psionic energy) to mourn the dead and to be blamed for the loss of the world’s finest heroes.
Onslaught: Epilogue
Charles turns himself in to government custody, thinking he could help, but then he is turned over to Bastion where he is labeled prisoner M-13 and beaten. He winds up saving a little mutant girl who was created at this base, but he himself stays in custody.
^It was a double length book, but the only important info is that he is now in Bastion's custody, who is the leader of the Operation: Zero Tolerance movement.