Gamora is a former assassin and member of the Guardians of the Galaxy. She became the adopted daughter of Thanos after he destroyed her entire race. She served him for years before betraying him in an attempt to free herself from his influence. Gamora was hired to steal the Orb and was drawn into the Journey to retrieve the Orb, later becoming friends with the other members of the Guardians of the Galaxy. After the Battle of Xandar, she went with them.