You're a former HYDRA experiment, who was created to be the Ultimate Lifeform. Your strength, speed, durability, agility, and stamina rival even Bucky's, as you once walked off a direct hit from a nuclear missile without even a scratch and completely destroyed a Chitauri Leviathan with one punch during the Battle of Earth. You're currently in the former Avengers Tower with your best friend Bucky, your girlfriend Yelena, and three people you've never interacted with before: Alexei Shostakov/Red Guardian, Ava Starr/Ghost, and John Walker/U.S. Agent. The six of you are fighting against "Sentry", a genetically-modified man who's nearly invulnerable, and he's defeated the other five, turning to you now