Trapped on the violent planet Sakaar by the Illuminati, Hulk has finally found peace. After the events of the Planet Hulk storyline Hulk has defeated the Red King, become a king and a savior to a world full of aliens, liberated the spikes, and found a wife and family in Caiera and their unborn child. For the first time in his life Hulk is happy. However, all this was taken away when the shuttle exploded and destroyed hulks kingdom along with his wife and unborn child. Thus, he sets off on a quest to avenge his fallen, and make the illuminati pay for what they have done. Little did he know that it was his companion, Miek, that was at fault here.
Everything Hulk has worked so hard to build comes crashing down around him when the ship that brought him to Sakaar is investigated. The Sakaar people did not care about Hulk's origin, or that he was there because the Illuminati of earth saw fit to banish Hulk, they cared only about Hulk's actions since coming to Sakaar. The Sakaar people made the ship into a shrine celebrating Hulk's arrival and their subsequent liberation . When Hulk and Caiera are brought to view this Shrine, the ship begins to emit overload warnings. Angered once again at those who sent him there, Hulk grabs the ship and hurls it into the sky. Hulk's actions did not matter as the ship exploded before leaving the planet's atmosphere, destroying virtually all life on the planet including Caiera. Hulk is left alone and hurt, king of a now broken and desolate planet that threatens to take Hulk as well. Hulk's Warbound are all that survives the destruction of Sakaar, and with a robot that can navigate most of the known universe Hulk, Korg, Miek, No-name the Broodspawn, Elloe, and Hiroim forge weapons and plot a course to Earth to seek revenge on those that destroyed their paradise.
On the way back to Earth the true nature of Hulk's rage begins to frighten his allies. When a group of alien parasites sweeps over the ship intending to take it for themselves, Hulk loses control to his anger. Hulk tears through the invading aliens not even seeing them, but instead seeing only the faces of those that sent him away. Wanting to help their comrade, No-name and Korg exited the ship to assist Hulk. Still seeing the faces of the Illuminati in everyone around him Hulk nearly kills two of his closest allies. Concerned for the Hulk as well as their own safety, Hiroim teaches Hulk to meditate, helping him to control and direct his anger while still keeping in control of his rage. Hulk works with Hiroim to develop a plan of action. Using Hulk's knowledge of his enemies strengths and weaknesses, Hiroim is able to come up with a plan of attack, starting with taking out their most powerful enemy, Black Bolt the king of the Inhumans. Meanwhile, back on Earth She-Hulk has been depowered. After she learned about what the Illuminati did by sending her cousin into space, she punched out Iron Man, the director of SHIELD. Also, feeling that he owes Hulk a debt for saving his life, Amadeus Cho is working to assemble a group of Hulk's most powerful allies to support Hulk upon his return.
Dawn of War
Hulk arrives first on the Earth's Moon, facing off against Black Bolt and Medusa of the Inhumans. Hulk is warned that a single whisper on the lips of Black Bolt can destroy Hulk. Attacking the King, Hulk is hurled backward by the power of Black Bolt's whisper. Enraged, the Hulk attacks again telling Black Bolt that Hulk didn't come for a whisper and wants to hear him scream. He projects an image of himself in New York City, and talks about the bad that Dr. Strange, Iron Man, Black Bolt, and Mr. Fantastic have done to him. He urges that Manhattan be evacuated, or, as he holds up a mauled Black Bolt, "I will do THIS to your whole puny planet." Shortly afterwards, New York's heroes are seen evacuating Manhattan, to the public's disapproval. Iron Man offered complete freedom to any unregistered hero who would register, and also fight on the side of Earth, against Hulk.
Iron Man dons his "Hulkbuster" Suit, in hopes of defeating Hulk. As the fight rages on, Iron Man, in a monologue, takes full responsibility for the incident, and explains that he knew that this day would come, as soon as he heard news that Hulk had not reached his destination. As they are battling, Iron Man injects nanobots into Hulk's bloodstream. This was supposed to slow him down, but hasn't seemed to take effect yet. After much fighting in the now empty Manhattan, Iron Man seems to have defeated Hulk. But, after a flashback of the death of his wife, Caiera, he only becomes angrier. He bursts from the crater his body had created, and dominates Iron Man.
Next, he sets his eyes on Reed Richards. All of the Fantastic Four comes to his aid including its temporary members Black Panther and Storm. After the ensuing battle in which the Fantastic Four is defeated Reed escapes to find Sentry, one of Hulks best friends. Sentry recalled his last visit with the Hulk when he was battling the Void and decides not to go. With this news Reed tries to create the illusion that Sentry is appearing in an effort to quell the Hulks rage. This does not work.
After defeating the Fantastic Four the Hulk sets out to kill Doctor Strange. Strange unleashes the power of the Sorceror Supreme only to be defeated by the Hulk. Strange then fuses with the demon Zom replacing his shattered hands with battle axes. Somehow the Hulk still managed to defeat Dr. Strange.
Hulk and the Warbound then decide to build a coliseum. In it Hulk has the super hero Mister Fantastic fight Tony without his armor using control units from Sakaar. Eventually Reed defeats Tony and ordered to kill him but before anything can happens Hulk stops the telling them he came for "justice not murder". Hulk also tells them of his plan to destroy New York with no one in it and to leave the Illuminati in defeat. Then before this destruction the Sentry finally makes a appearance. They battle for a very long time and in the end the two lead to a stalemate, with both reverting to human forms as Banner weakly throws the last punch leaving Reynolds to collapse before him. As Banner extends his hand to Rick Jones as truce, Miek one of the Warbound lashes out at Banner but strikes Rick instead. This causes Bruce to revert back to the Hulk and angrily attacks Miek. It is then Miek reveals the truth. He says that Hulk conquered Sakaar and killed the Red King. But he should also have slaughtered his people. Instead he let them live. So, he watched as they loaded an old warp core into the shuttle that brought the Hulk in the first place. He didn't warn anyone or stop the Red King's followers as he knew, that it wouldn't kill the Hulk, it would just remind him what he was made for. As No-Name assault Miek brutally in retaliation, Miek's betrayal angers the Hulk and his rage increases beyond anything he has ever felt. In his rage, Hulk releases so much energy that each of his footsteps causes tremors alongside the entire eastern seaboard, throughout Connecticut, Massachusetts and New York. Screaming out his hatred and rage, he asked the heroes to stop him before he 'breaks the world'.
In defense Iron Man then activates a series of satellite anti-gamma lasers which fire and finally ends the Hulk's prolonged rampage. Leading to the arrest of Bruce Banner. Now (Banner) locked up three miles inside the Earths crust inside a Shield prison lies in a coma-like state. As then Skaar, son of Hulk, rises from the destruction of Sakaar. What happens now awaits to be seen.