Chapter Summaries

Ben and Felicia defeated Nebula and reached the temple's deepest chamber, where they found an empty Universal Orb. When the Power Stone awakened elsewhere on Morag, the temple collapsed, and Ben sent Felicia and Nebula to evacuate while he rushed to investigate.

• Ben used Wildvine's paralyzing explosives to defeat the Accusers, while Felicia defeated Nebula with her Vibranium Battle Suit.
• Felicia captured Nebula with a Subjugation Disc, and Ben decided to keep her alive as a potential recruit for the Galactic Plumbers.
• Ben and Felicia found an empty Universal Orb in the temple's deepest chamber.
• The Power Stone awakened in the temple where Star-Lord and Peter were, triggering violent waves and the collapse of the underwater ruins.
• Ben transformed into Diamondhead and raised a crystal pillar to carry himself and Felicia through the sea to the surface.
• Ben sent Felicia to return Nebula to the ship and arrange an evacuation, then transformed into Jetray and flew toward the Power Stone's location.

Peter and Star-Lord fought Ronan after Star-Lord’s interference let Ronan claim the Power Stone, and Peter used the temple’s rubble to bury him temporarily. Ronan broke free and attacked them, but Ben arrived just as Peter and Star-Lord faced destruction.

• Peter’s plan to steal the Universal Orb collapsed when Star-Lord snatched it, and the orb shattered during the ensuing fight, exposing the Power Stone.
• Peter’s arm was badly damaged when he touched the stone, but Ronan seized it and embedded it in his Omni-Weapon, gaining control over gravity and pinning Peter and Star-Lord.
• Star-Lord’s Element Gun broke the wall trapping Peter, who freed Star-Lord and attacked Ronan, but Ronan caught Peter’s enhanced punch and restrained him again.
• Star-Lord blasted Ronan to save Peter, and Peter wove webs around the temple fragments to pull the rubble down and bury Ronan.
• Ronan burst free and unleashed destructive energy at Peter and Star-Lord, but Ben arrived and intercepted the attack with a green beam.

Ben fought Ronan on Morag and used Big Chill to freeze him after Jetray could not overcome the Power Stone’s gravity. With Ronan trapped and the Stone within reach, Ben stopped short of taking it and considered letting Ronan threaten Xandar so the Galactic Plumbers could bring the planet and Nova Corps under their influence.

• Ben arrived as Jetray and attacked Ronan, while Peter, Venom, and Star-Lord retreated aboard Star-Lord’s ship.
• Ronan used the Power Stone to strengthen himself and control gravity, pulling Ben close and grabbing him by the throat.
• Ben transformed into Big Chill, escaped Ronan’s grip by becoming intangible, and froze Ronan and his Omni-Weapon.
• Ben reached for the Power Stone, then paused and considered using Ronan’s likely attack on Xandar to expand the Galactic Plumbers’ influence.

Ben obtained six fake Infinity Stones from Enara and Oyana, then swapped a fake Power Stone for Ronan’s real one while Ronan remained trapped in the ice. Back aboard the Sakaaran Messenger, the others learned that Bucky had taken control of a Kree ship.

• Ben froze Ronan beneath a vast ice formation and transformed into Alien X to ask Enara and Oyana for a fake Infinity Stone.
• Enara, Oyana, and No-Watch Ben approved Ben’s request and gave him six temporary fake Infinity Stones.
• Ben returned to the icy sea, wrapped the real Power Stone in Vibranium, attached a fake Stone to Ronan’s hammer, and escaped as Jetray.
• Aboard the Sakaaran Messenger, Peter explained that Ben was fighting Ronan and identified Star-Lord while Felicia and Black Panther identified Nebula and Gamora as Thanos’s subordinates.
• Bucky told Steve that he had captured a Kree ship, leaving Steve confused.

Ben and his allies returned to Sakaar with the Power Stone and a captured Kree warship, while Ronan escaped with a fake Stone. As Sakaar prepared for war, Ben ordered the ship dismantled and welcomed Peter’s interest in the Gladiator Arena.

• Rocket claimed credit for capturing the Kree warship, and Ben agreed to pay him two billion after accounting for Bucky’s contribution.
• Ben revealed that he had the real Power Stone, while Ronan escaped Morag with a fake one that still gave off intense purple light.
• Ben’s group arrived on Sakaar, where Caiera welcomed them and Ben ordered the Kree warship delivered to Bill for dismantling.
• Ben doubled Rocket’s payment to four billion, and Rocket discovered raccoon pictures on Ben’s phone and realized he was a raccoon.
• Caiera told Ben that Looma was recovering from soul damage, and Ben ordered her to stay out of the coming war.
• Caiera explained that Sakaar’s Gladiator Arena was holding a crowded tournament to recruit Galactic Plumbers, and Loki offered to show Peter and the others around.

Ben stored the Infinity Stones in Sakaar’s containment chamber, reviewed the planet’s growing Plumber force with Caiera, and proposed an alliance with the Symbiotes. Meanwhile, Thanos seized the Power Stone from Ronan and introduced the hidden Vilgax as Ronan watched.

• Ben left the Casket of Ancient Winters in the vault as his trophy for conquering Jotunheim and asked Caiera to arrange repairs for the Destroyer Armor.
• Caiera reported that Sakaar had seventy thousand official plumbers and that Bill’s Giant Battleship was being modified, while Ben proposed an alliance with the Symbiotes of Klyntar.
• Ronan prepared to attack Xandar but surrendered the Power Stone to Thanos after Sanctuary arrived.
• Ronan told Thanos that Gamora and Nebula were missing and described the hourglass-shaped mark of the Galactic Plumbers who attacked him.
• Thanos removed the Power Stone from Ronan’s Omni-Weapon and wielded it effortlessly as Vilgax emerged from the shadows.

Vilgax joined Thanos’s campaign while secretly prioritizing the Omnitrix, and Thanos chose to honor his promise to Ronan by targeting Xandar. On Sakaar, Peter and T’Challa fought in the arena as Korg revealed an awkward story about the Sakaar King and the Red Wind Queen, leaving Loki warning him to wait for death.

• Vilgax recalled his defeat by Thanos and agreed to cooperate while secretly pursuing the Omnitrix.
• Vilgax urged Thanos to attack the Galactic Plumbers Headquarters, but Thanos decided to conquer Xandar first and reaffirmed his promise to Ronan.
• Peter and T’Challa entered the Sakaar arena and defeated several opponents.
• Korg told Felicia and Loki that the Sakaar King had won the Red Wind Queen’s favor by turning into Four Arms and grappling with her.
• Loki told Korg he could wait for death.

After recruiting Rocket and Groot to help destroy the Chitauri Helicarrier, Ben split his forces between the attack and an alliance mission to Xandar. He then visited the prisoners, intending to obtain Star-Lord’s genes.

• Peter and T’Challa won the Gladiator Arena fight, while Steve explored the Imperial Capital and saw its residents living happily despite ongoing construction.
• Rocket accepted Ben’s offer of four billion to help destroy the Chitauri Helicarrier after learning Thanos had taken an interest in him, and Groot went with him.
• Ben assigned Felicia, Peter, and T’Challa to join Rocket and Groot, while Steve, the Winter Soldier, and Caiera headed to Xandar to seek cooperation with the Nova Corps.
• Ben told Loki that Thanos’s Power Stone was fake and would soon lose its power, then declined Loki’s offer to seek help from Asgard.
• Ben went to the prison holding Nebula, Gamora, and Star-Lord, intending to obtain Star-Lord’s genes.

Ben collected genetic samples from Star-Lord, Nebula, and Gamora on Sakaar, and Star-Lord's genes unlocked Gravattack. Nebula joined Ben's campaign against Thanos, while Gamora remained conflicted as Ben freed Nebula from her cage.

• Star-Lord begged Ben to release him and offered to help fight Thanos, but Ben ignored him and collected a hair for a genetic sample.
• Ben's watch decoded Star-Lord's genes and unlocked Gravattack, a living-planet form with gravity control and the ability to create black holes.
• Ben collected genetic samples from Nebula and Gamora, and Nebula volunteered to help him take down Thanos.
• Gamora challenged Nebula for betraying their father, but Nebula declared her hatred of Thanos and condemned his treatment of them and the destruction of the Zen Whoberis.
• Gamora remained silent, torn between her hatred of Thanos and her fear of facing him, as Ben opened Nebula's cage.

Ben discovered Thanos’s hidden contingency in Nebula and offered to restore her organic body, while Steve, Caiera, and their companions failed to convince Xandar that Thanos and Ronan posed a threat. Xandar confirmed the approaching danger but still refused to cooperate with Sakaar.

• Ben found a contingency Thanos had implanted in Nebula and explained that it had allowed Gamora to locate her.
• Ben offered Nebula either advanced replacement machinery or treatment to restore her body, and she chose to become herself again.
• Ben adapted the Self-Healing Serum to Nebula’s genes, removed most of her mechanical parts, and placed her in a healing chamber.
• On Xandar, Queen Adora and the Centurion Director dismissed Caiera’s warning that Ronan and Thanos might attack despite the peace treaty with the Kree.
• Steve invoked Thanos, but the Xandarians remained confident in the Nova Corps and had Caiera’s party escorted from the palace.
• Xandar investigated and confirmed that Thanos’s Sanctuary and the Accusers’ Dark Aster were approaching, yet it still refused to cooperate with Sakaar.

Ben prepared the Galactic Plumbers' battleship for war and let Gamora escape so Nebula could confront her. As the ship's crew prepared to depart for Xandar, Thanos's forces launched a massive assault on the planet.

• Ben upgraded Bill's completed battleship, and Bill organized the Korbin People and former gladiators aboard as its crew.
• Nebula joined the crew as Bill's assistant, while Ben, Bill, and Nebula discussed when to depart for Xandar.
• Star-Lord reported that Gamora had escaped, and Nebula tried to stop her from reaching Thanos.
• Ben revealed that he had let Gamora go deliberately so Nebula could face and defeat her, encouraging her to protect herself if she lost.
• Thanos's Black Order, the Accusers, and a vast Chitauri army began their attack on Xandar while Thanos held back from the battle.

Thanos and Ronan’s invasion overwhelmed Xandar despite the Nova Corps’ resistance and the aid of Steve, Caiera, and their companions. As Ronan seized Irani Rael and cornered Queen Adora, a Galactic Plumbers battleship arrived and demanded the attackers withdraw.

• Queen Adora activated Xandar’s Planetary Shield, but Sanctuary and the Dark Aster broke through it, letting Chitauri forces invade the planet.
• Ronan joined the fighting, defeated several Centurions, and declared he would wipe out every Xandarian.
• Steve, the Winter Soldier, and Caiera entered the battle to rescue Xandarians and fight the invaders.
• Thanos watched the Nova Corps fall while Vilgax urged him to use the Power Stone against Xandar.
• Ronan reached Adora’s palace, held Irani Rael by the throat, and left Adora regretting that she had rejected an alliance with Sakaar.
• A Giant Battleship appeared above the palace, and the Galactic Plumbers ordered Thanos and Ronan to withdraw from Xandar.

Thanos ordered Sanctuary to attack the Galactic Plumbers after their Giant Battleship appeared, while Plumbers fought to defend Xandar. Confident in the Power Stone, Thanos prepared to storm the Giant Battleship and confront the King of Sakaar.

• Vilgax recognized the Galactic Plumbers and recalled his past rivalry with Max Tennyson, but trusted his enhanced strength.
• Gamora told Thanos that Nebula had betrayed him, and Thanos confronted Gamora about lying about the Soul Stone.
• Thanos ordered Sanctuary to unleash its weapons on the Giant Battleship, and both sides began battling across space.
• Bill rescued Adora and Irani from Ronan, then challenged Ronan to fight.
• Thanos embedded the Power Stone in the Tyrant Butcher Blade and told Vilgax to accompany him to the Giant Battleship.

Ben confronted Thanos and Vilgax aboard the Giant Battleship, transforming into Ghostfreak to keep the fight away from the fleet. After using his tentacles to clamp onto Vilgax’s face, Ben vanished, leaving Vilgax immobilized and the battle unresolved.

• Ben recognized Vilgax alongside Thanos and told Loki to command the fleet while he transformed into Ghostfreak.
• Ben ambushed Thanos, but Thanos blocked his claws before Ben wounded him with a follow-up attack.
• Vilgax recognized the Omnitrix and warned Thanos about Ghostfreak’s intangibility as Ben’s tentacles sent Vilgax flying.
• Thanos used an energy-infused blade against Ben while Vilgax repeatedly attacked and demanded the Omnitrix.
• Ben used wrecked Nova Corps spacecraft to strike Vilgax, then clamped his tentacles around Vilgax’s face and vanished.

Ben possessed Vilgax to fight Thanos, but Thanos blasted Vilgax’s body apart with the Power Stone. Ben then transformed into Ultimate Heatblast by drawing on Surtur’s Eternal Flame and unleashed a devastating attack over Xandar.

• Ben took control of Vilgax’s body and joined the fight against Thanos.
• Thanos blasted apart half of Vilgax’s body with the Power Stone, forcing Ben to abandon it.
• Ben transformed into Heatblast, empowered by the Eternal Flame he had absorbed from Asgard’s vault.
• Ben hurled a powerful fireball at Thanos, filling the sky above Xandar with flames and burning Chitauri forces and beasts.

Ben’s Heatblast fought Thanos amid apocalyptic flames while the Galactic Plumbers and their allies struggled to defend Xandar. As reinforcements arrived and battles continued across the planet, Queen Adora saw the king of Sakaar battling in the sky.

• Ben used Heatblast’s power to drag Thanos toward Xandar and fought him without relying on the Infinity Stones.
• Nebula confronted Gamora in Sanctuary, challenged her loyalty to Thanos, and attacked her.
• Star-Lord and the Galactic Plumbers struggled against the Chitauri until Brunnhilde arrived with the Symbiotes, who strengthened the fighters.
• Brunnhilde, Steve, the Winter Soldier, Bill, Korg, and Miek fought the Chitauri and Accusers across Xandar.
• Caiera rescued Queen Adora while Bill fought Ronan, and Adora watched the fiery battle above and learned that the combatant was the king of Sakaar.

Ben fought Thanos on Xandar while the Galactic Plumbers battled the Chitauri, then revealed that he opposed Thanos out of revenge for his attacks on Earth, Sakaar, and Looma. Thanos unleashed the Power Stone and hurled Xandar’s moon toward the planet, but Ben answered by revealing a matching purple crystal.

• Adora learned from Caiera that Heatblast was Sakaar’s king as Ben and Thanos continued their fierce battle.
• Ben shattered Thanos’s Tyrant Butcher Blade, and Thanos emerged from Ben’s explosion unharmed.
• Ben revealed that the Chitauri had fallen because someone destroyed their mothership, then rejected Thanos’s offer to spare Earth, Sakaar, and their allies.
• Ben told Thanos he wanted revenge for the attacks on Earth and Sakaar and for sending people after Looma.
• Thanos used the Power Stone to tear apart the ground and pull Xandar’s moon toward the planet.
• Ben smiled and revealed a purple crystal that looked like the Infinity Stone in Thanos’s hand.

Ben tricked Thanos into believing their Power Stones canceled each other out, then trapped him in a destructive blast. He chose to fight Thanos directly and transformed into a copy of him using the blood on his watch.

• Thanos dismissed Ben’s Power Stone as fake, but Ben displayed six convincing Stone replicas and claimed that Infinity Stones came in pairs.
• Thanos deduced that Ben had used the Reality Stone to create the replicas, but his own Power Stone went dim when Ben claimed their Stones’ genders made them cancel each other out.
• Ben unleashed the Power Stone’s destructive energy and trapped Thanos in flames, then put the Stone away and canceled his transformation to offer a direct duel.
• Ben smeared Thanos’s blood on his watch and activated it, transforming into a Purple Potato identical to Thanos.

Ben defeated Thanos after transforming into Atlas, then used the Power Stone to destroy the satellite threatening Xandar. With the planet saved, Queen Adora reconsidered handing Worldmind to the Galactic Plumbers, and Brunnhilde angrily rejected the idea.

• Ben transformed into Atlas and fought Thanos in a final duel, killing him by stabbing him through the chest and cutting off his head.
• Loki told Caiera that the satellite would begin tearing Xandar apart within an hour, and Queen Adora offered Worldmind to the Galactic Plumbers so Xandar's history could survive.
• Brunnhilde slapped Queen Adora for giving up on Xandar, then insisted that Ben could stop the satellite.
• Ben arrived at the palace, confirmed Thanos was dead, and transformed into Four Arms to blast the satellite apart with the Power Stone.
• The satellite's fragments became a meteor shower over Xandar, and Queen Adora asked to keep Worldmind after all, prompting Brunnhilde to tell her to get lost.

Ben returned to Sakaar after Xandar joined the Galactic Plumbers, bringing the Nova Force and Thanos’s ship into Sakaar’s growing power. He planned to stay and build a Worldmind while Caiera handled diplomacy and sent Peter’s people back to Earth.

• Ben learned that the Nova Force was limited, planned to bind it to Plumber equipment, and accepted Queen Adora’s offer to establish a Plumbers branch on Xandar.
• Sakaar and the Galactic Plumbers gained recognition across the universe, with some people calling Sakaar the Fourth Empire.
• Caiera reported diplomatic requests from the Galactic Federation and the Skrull, Shi'ar, and Kree Empires, while Ben refused to release Ronan without a technology exchange.
• Ben told Caiera to have Bill modify Sanctuary and confirmed that he had not found Vilgax, who had escaped after being injured by Thanos.
• Ben decided to remain on Sakaar to build a Worldmind and develop the technology they had acquired, while Caiera prepared a Messenger to return Peter’s people to Earth.