King Shark was responsible for a number of missing persons several years before Superboy arrived in Hawaii. Sam Makoa was responsible for bringing him in and bore the scars to prove it. King Shark is freed by the Silicon Dragons who plan on hiring him. Nanaue is not interested and kills his liberators before heading to his mother's house. His mother allows him to bite her arm off to feed. Superboy managed to take him down with his heat vision. When Superboy and Makoa were assigned to the Suicide Squad to destroy the Silicon Dragons, King Shark was forced to help. An explosive belt was strapped to his waist, set to detonate if anything happened to Makoa. Other members of the Squad included Knockout and Squad veterans Deadshot and Captain Boomerang.