As part of a preprogram failsafe created by Thanos of Titan ,he had ISAAC capture the Eternals of Titan ,mesmerise Elysius and create beings using the Life-Baths .One of the beings created was Lord Gaea,who ruled underground Titan with the help of some Earth-Demons .
With the help of his Earth-Demons, he tries to eliminate Captain Marvel and Drax the Destroyer, revealing them that ISAAC has became a living organism with its own will. They also learn that he tried to sabotage Isaac’s main controls and failed. Lord Gaea is killed by Drax the Destroyer while he tries to shoot the warriors in their back.