The Attack on Peter Quill was a simultaneous confrontation in Xandar between Gamora, who wanted to obtain the Orb that Quill had obtained; Rocket Raccoon and Groot, who wanted to obtain the bounty placed on Quill's head; and Peter Quill himself, who was trying to sell the Orb and keep the reward for himself.
The Ravagers are hired by a Xandarian merchant called the Broker to recover the Orb from the planet Morag. In an attempt to separate from the Ravagers, Star-Lord travels to Morag alone to recover the Orb. Quill retrieves the Orb and escapes from Korath the Pursuer.
Yondu Udonta orders the Ravagers to put a bounty on Quill's head which draws the attention of Rocket Raccoon and Groot. Quill traveled to Xandar to sell the Orb to the Broker. Quill informs him that Ronan the Accuser was after the Orb as well and the Broker refused to purchase it.
Star-Lord left the Broker's Shop and was attacked by Gamora who stole the Orb and ran. Quill used Electric Bolas to knock Gamora down and attacked her. Gamora kicked him aside and stepped on his arm to keep him from pulling his Quad Blasters. Gamora pulled a knife but Rocket Raccoon jumped on her back before she could stab Quill. Gamora got to her feet and Groot grabbed her with his vine tentacles but Gamora broke free and threw Rocket across the plaza. Quill picked up the Orb and ran but Gamora threw her knife and knocked the Orb out of his hand and onto the lower level of the plaza.
Gamora jumped down and grabbed the Orb but Quill knocked her down. Quill took the Orb from Gamora and attached his jet boot attachment to her back which sent her flying across the plaza and into the fountain. Groot came up from behind Quill and placed him in a large bag and began to carry him away. Gamora returned and attacked Groot with her sword, cutting his arms off. Gamora walked over to the bag to retrieve the Orb but Quill shot her with his Quad Blaster. Quill tried to run off but Rocket shot him with his Laser Cannon.
The Nova Corps imprisoned Star-Lord, Rocket Raccoon, Groot and Gamora in the Kyln. Gamora informed the others that the Collector was her employer, not Ronan the Accuser, and the four agreed to split the payment if they could deliver the Orb. With the help of fellow inmate Drax the Destroyer they were able to escape before Ronan and Nebula attacked the Kyln.