Parnival Plunder is the younger brother of Kevin Plunder. When their father Robert discovered the Savage Land, word leaked out and he sent Kevin to live there and Parnival to live as a sailor to keep them safe. Parnival believed that Kevin died, so he established himself instead as lord of their family home of Castle Plunder as a front for his criminal activities as the Plunderer.[volume & issue needed] Upon learning that his brother had survived and was living in the Savage Land and operating as Ka-Zar, the two clashed on several occasions, mostly over Parnival's obsession with Antarctic vibranium.[volume & issue needed] The Plunderer came into conflict with the Fantastic Four at one point, when he tried to steal Reed's lab equipment while the team had temporarily disbanded.[3] Parnival later allied with a clone of Thanos in a scheme to steal the equipment that maintains the Savage Land's idyllic environment. The Plunderer hires a man named Gregor to arm one Savage Land tribe with laser rifles to attack Ka-Zar, and kidnap Ka-Zar's son Matthew while Ka-Zar is occupied. Ka-Zar and his wife Shanna the She-Devil rescue the baby and discover that Parnival employed Gregor, so Ka-Zar travels to New York City to find out why his brother wanted him killed. While there, the Rhino attacks Ka-Zar on Parnival's behalf, though Ka-Zar turns the Rhino into a weapon against his brother. Shanna, who had followed Ka-Zar to New York, is then attacked by the Plunderer's men. Parnival is then able to smuggle the Savage Land's terraforming machinery into New York City, which has devastating effects on the Savage Land. During the Civil War, the Plunderer hoped to ally himself with Captain America, but the Punisher executed him before Captain America could intervene. Plunderer later resurfaced and revealed his "American representative" had been killed and not him. During the Infinity storyline, Plunderer and his men are stopped from stealing robot parts by Heroes for Hire. Plunderer tries to escape, but he is stopped by the Superior Spider-Man (Doctor Octopus' mind in Peter Parker's body). The moralities of Plunderer and three members of his gang are inverted during the events of AXIS due to them secretly being present on Genosha during the battle against Red Onslaught. Plunderer's new outlook on life prompts him to try to become a Robin Hood-like figure who donates a cut of what he steals to "starving orphans". When Plunderer tries to rob a corrupt company called Cortex Incorporated, he and his gang are stopped by Captain America. Plunderer, somehow restored to normal, reappears during All-New, All-Different Marvel embarking on a crime spree that is halted by the New Avengers.