Peggy Carter (Hayley Atwell) is Captain America's girlfriend and the protagonist of the special short film "Agent Carter". In 1946 (after the story of the movie "Captain America" ended), Peggy Carter's peaceful life was completely broken - when the soldiers who fought overseas returned home, Carter found herself completely ignored. Now that she has joined the secret organization SSR (Strategic Scientific Reserve), she must find a balance between three things: doing a good job in management, performing secret missions for Howard Stark, and being a single American woman. She thought that Steve Rogers (Captain America), the only man she had ever loved in her life, was dead... How could she know that he was trapped in ice at this moment! At the same time, the evil organization Zodiac is still secretly destroying the world's peace and stability, and Peggy Carter must do her best to fight against it.