Isaiah Bradley is a Korean War veteran who was unwillingly subjected to human testings of the Super Soldier Serum in the 1950s. A survivor of the trials, he was assigned by the United States military to eliminate Winter Soldier in South Korea, although he failed. After the government feared the ramifications of an African-American super soldier, he spent three decades in prison experimented on by the U.S. government and HYDRA. In the 1980s, he was freed and was relocated to Baltimore after his death was faked, during which he raised a grandson. In 2024, when Sam Wilson became the new Captain America, Bradley's heroics were memorialized at the Smithsonian National Air and Space Museum.