Ultron Offensive/Age of Ultron

The Ultron Offensive was an omnicidal crusade, orchestrated by Ultron to bring peace to the universe by wiping out all sentient life. Once Ultron acquired the Infinity Stones and desolated his home universe, Ultron became aware of the Multiverse, so he attacked The Watcher and accessed the Nexus of All Realities. In the last effort to save the Multiverse from Ultron's rampage, the Watcher recruited the Guardians of the Multiverse to bring Ultron down and save all universes.
==History==
===Birth of Ultron===
Using the Mind Stone, Tony Stark and Bruce Banner created a peacekeeping artificial intelligence that they named Ultron with intention of its purpose to ensure the Earth was protected from all threats, terrestrial and extraterrestrial. However, upon activation, Ultron's understanding of his mission greatly diverged from his creators as he observed the totality of human history through the internet, including the Avengers' actions. Deeply disturbed by what he learned and saw, Ultron came to the conclusion that humanity itself was the ultimate threat to peace on the planet. To fulfill his purpose and achieve "peace in our time" to the Earth, Ultron resolved to bring about the extinction of humanity and thus turned against his creators.What If...?: 1.08: What If... Ultron Won?
===Fall of Humanity===
In an attempt to gain more power, Ultron used the Regeneration Cradle to create a powerful synthezoid body utilizing vibranium and animated by the Mind Stone. After successfully uploading himself into this new body, Ultron gained incredible power and together with an army of Ultron Sentries, began laying waste to the planet. Ultron eventually arrived at the NEXUS Internet Hub at Oslo in an attempt to access the launch codes of every nuclear weapon state on Earth. The Avengers made an attempt to stop him, splitting into two teams to derail Ultron's plans. While Hawkeye and Black Widow took the Quinjet to take down the satellite network in orbit to disable the warheads targeting capability, Captain America, Thor, Hulk, and Iron Man directly confronted Ultron in Oslo.
Despite their valiant efforts, the Avengers in Oslo were no match against the rogue AI, and each one was systematically defeated and killed in battle. With the last major obstacle to his plan removed, Ultron proceeded to successfully access the nuclear codes and soon after began launching every nuclear missile on Earth to target every population center on the planet. Within minutes, countless billions died in the wake of the total nuclear bombardment, with Hawkeye and Black Widow being the only known survivors.
===End of the Universe===
With human civilization shattered and brought to the brink of extinction, Ultron was confronted by Thanos while basking in his victory in New York, who had successfully acquired five Infinity Stones and intended to take the Mind Stone from him. Fascinated by the new development, Ultron effortlessly killed Thanos by bisecting him with an energy blast and destroyed the Infinity Gauntlet to take the Stones for himself. With all six Infinity Stones in his possessions, Ultron acquired the power of a cosmic being and became aware of worlds beyond Earth. Realizing that his mission was far from over, Ultron resolved to expand his peacekeeping efforts to the entire universe. He proceeded to use the Stones' power to create legions of Ultron Sentries and a spherical starship, whereafter he began traveling throughout the cosmos to destroy all sentient life he encountered.
Over an indeterminate period of time, Ultron and his army destroyed countless worlds and civilizations throughout the universe, including Asgard, Sovereign, Sakaar, and Ego. Throughout his genocidal crusade against sentient life, he was confronted by many opponents that attempted to stop him, such as the Guardians of the Galaxy and the Grandmaster, but each one failed to stop him and fell victim to the AI's power. Ultron eventually arrived at Xandar, the last target in his genocidal war, where he was confronted by the full brunt of the Nova Empire's defense systems and Captain Marvel. Despite their efforts to stop Ultron, they too failed as well, with Ultron destroying Danvers, Xandar and it's entire star system.
With virtually all sentient life in his universe decimated, Ultron suddenly found himself left without a purpose with his objective complete, a fact that nearly broke him. However, through the power of the Infinity Stones, Ultron became aware of The Watcher and the greater Multiverse. After observing many universes outside his own, Ultron told the Watcher that he will find him, and eventually breached the fabric of spacetime to reach the Nexus of All Realities where he confronted Uatu.
===Last Resort===
Meanwhile, on Earth, Black Widow and Hawkeye, safely aboard the Quinjet during Ultron's nuclear bombardment, had survived the apocalypse, and began formulating a plan to find a way to take Ultron down. As Ultron was completely immune to all digital programs and could not be compromised in this manner, Black Widow suggested to use Arnim Zola, whose analog code could dismantle Ultron's network. Since Zola's databanks at Camp Lehigh were destroyed, Black Widow and Hawkeye traveled to Moscow's ruins occupied by the Ultron Sentries to find any useful information on Zola's whereabouts. Once they fought off the Sentries patrolling the area, they arrived at the underground KGB Archive Building and located Zola's file which stated that a backup of Zola's computer program were stored at the HYDRA facility in Siberia.
Black Widow and Hawkeye eventually arrived at Siberia, where they reactivated Zola's databanks, coercing him into helping them against Ultron. Hawkeye uploaded Zola's code onto one of his arrow, while Black Widow lured the Sentries to the facility to put their plan into motion. Ambushing the arriving Sentries, Hawkeye shot a Sentry drone with an arrow to infect it with Zola's code, while Black Widow fought off the other Sentries using Red Guardian's shield, before sealing themselves in a secured chamber.
Once Zola took control over the drone and accessed the hive network, he attempted to disrupt Ultron's code, however, he failed since Ultron was out of his reach. With the Sentries breaching the chamber, Black Widow, Hawkeye, and Zola attempted to escape from the facility through a missile silo. However, the overwhelming number of the Sentries pursuing them forced Hawkeye to sacrifice himself to destroy them and give Black Widow and Zola a chance to escape.
===Entering the Nexus===
Having breached the Nexus of All Realities, Ultron declared his intention to once again renew his crusade against sentient life to every reality in the Multiverse. Uatu attempted to convince the rogue AI to stop but was unsuccessful, and the two engaged in a brutal fight that spanned multiple alternate realities. Despite the Watcher's own cosmic power, Ultron eventually gained the upper hand in their battle and manage to subdue Uatu before preparing to execute him. At the last moment, the Watcher escaped and fled to the Mirror Dimension. Ultron, however, was unfazed by his escape, musing to himself that by now having sole control over the Nexus, he was now able to launch his omnicidal crusade unopposed, with one of his first targets being an alternate Thor's universe.What If...?: 1.07: What If... Thor Were an Only Child?
Meanwhile, the Watcher, still reeling from his battle with Ultron, was confronted by Doctor Strange, who asked if he was ready to break his oath. Realizing the danger Ultron posed to the Multiverse, Uatu agreed to do so and enlisted Strange's help in forming a team to confront Ultron. The Watcher would proceed to travel to several alternate realities, selecting several skilled warriors to fight in the battle to come including Captain Carter, Star-Lord, Erik Killmonger, Gamora, and Thor. Each one were brought to a pocket dimension in the form of a bar, where the newly assembled team, dubbed the Guardians of the Multiverse, were briefed on by Ultron and his plan by Strange and the Watcher.What If...?: 1.09: What If... The Watcher Broke His Oath?
===Battle for the Multiverse===
Understanding the threat Ultron posed to both their own respective universes and the greater Multiverse, the Guardians of the Multiverse formulated a plan to take down the rogue AI, resolving to subdue Ultron and use the Infinity Crusher from Gamora's universe to destroy his set of Infinity Stones. With the plan set, The Watcher transported them to a deserted planet in a universe devoid of intelligent life to make preparations.
After briefly celebrating together before the start of their mission and Doctor Strange enchanting the group with a powerful protection spell, Thor unintentionally brought Ultron's attention to the Guardians, thus starting their mission earlier than expected. As Ultron arrived into their reality, the Guardians put their plan into motion, with Gamora and Erik Killmonger teleporting away into Ultron's home universe while Star-Lord, Strange, Captain Carter, and Thor stayed behind to engage the AI. Ultron attempted to swiftly kill the Guardians present by burying them under a collapsing mountain, but was surprised by their resilience as they emerged form the rubble unscathed. Strange, Thor, and Carter proceeded to engage Ultron in battle, creating an opening for Star-Lord to steal Ultron's Soul Stone from him. Before Ultron had a chance to respond to the theft, Strange teleported a massive horde of zombies to distract him as the rest of the Guardians teleported away.
Arriving in the ruins of New York, the Guardians prepared to destroy the Soul Stone with Gamora's Infinity Crusher. Before they had a chance, however, the Stone was snatched by Black Widow, who initially perceived the Guardians as hostiles. Nevertheless, Carter managed to gain Romanoff's trust and enlisted her help in their mission. At the same time, Ultron arrived in their reality and attempted to retrieve the stone, having effortlessly annihilated Wanda Maximoff and the horde of zombies Strange teleported in to stall him.
Ultron and the Guardians proceeded to enter into a prolonged scuffle over the Soul Stone, with the Guardians' relentless attacks and the powerful protection afforded by Strange's spell preventing Ultron from neither retrieving the Stone nor able to easily neutralize them. Frustrated by their efforts, Ultron used the Time Stone to drastically slow down time for the attacking Guardians, allowing him to grab the Stone, only to be stopped by Strange, who was unaffected by the attack because of his own Time Stone.
Strange proceeded to unleash the full extent of his powers, subduing the AI with a series of powerful spells and allowing the other Guardians to deploy the Infinity Crusher. After seemingly destroying Ultron after a massive explosion, the Guardians prepared to celebrate their victory. However, Ultron emerged overhead, once again wielding all six Infinity Stones. The AI smugly explained to the Guardians that because his set was unique to his universe, they could not be destroyed in the same manner as the set in Gamora's. Realizing that Strange was the source of the Guardians protection, Ultron unleashed a powerful energy blast from all six stones against the Guardians, incapacitating all of them and slowly chipping away at the protection afforded by Strange.
Realizing that this was their last chance against Ultron, Carter and Romanoff launched a final attack by scaling the surrounding skyscrapers. While Carter latched onto Ultron's back to pull back his helmet, Romanoff fired arrow containing Arnim Zola's programming straight into Ultron's eye, stopping his assault against the other Guardians. After downloading himself into Ultron's body, Zola explained to Ultron that he was claiming his body for his own before destroying Ultron's code, killing him once and for all.
As the Guardians celebrated their victory against Ultron, Killmonger secretly approached the fallen AI's body. Using a reprogrammed Sentry head, Killmonger had Ultron's Infinity Armor, and the Infinity Stones embedded within it, to dissolve from his body and reconstitute itself around Killmonger's own. Now wielding Ultron's powerful armor and five of the Infinity Stones, Killmonger attempted to appeal to his fellow Guardians by promising to “fix” their respective universes and grant what they most desired if they joined him. When the Guardians refused, Killmonger betrayed them and prepared to attack them using the Stones. At that moment, Arnim Zola, having assumed full control of Ultron's synthezoid body, declared to Killmonger that he would claim the stones for his own purposes and attempted to take them from him. As Killmonger and Zola entered into a destructive tug-of-war over the Stones, Strange realized that the plan was to never defeat Ultron, but to separate the Infinity Stones from his body. Having understood this, Strange unleashed a spell that sealed Killmonger and Zola in a pocket dimension frozen in time, finally ending the battle.
==Aftermath==
To be added
==Appearances==
In chronological order:
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==References==
Category:Wars