When Bucky Barnes seeks refuge at Avengers Tower, haunted by his past as the Winter Soldier, Madeleine Prescott takes it upon herself to get the emotionally distant Bucky to break through his defences. As they spend more time together, what begins as an effort to get him to open up transforms into a deeper bond. Amid the looming threat of HYDRA, the pair find themselves drawn together, their growing feelings offering Bucky a chance at redemption and Madeleine a love she never expected.