"Picking up where the events of Captain America: The First Avenger left off, Agent Carter tracks British operative Peggy Carter as she joins the nascent S.H.I.E.L.D. organization. As she searches for the enigmatic Zodiac key, Agent Carter also battles her sexist, bureaucratic boss, Agent Flynn (The West Wing’s Bradley Whitford), who thinks women have no place in the secret-agent business. Co-starring Dominic Cooper (Captain America: The First Avenger) as Howard Stark, Agent Carter is the fourth entry in the fan-favorite Marvel One-Shot Short Film Series, which exists within the continuity of the Marvel Cinematic Universe."
Iron Man 3 (complete with Agent Carter) receives its home entertainment release on September 9th in the UK and on September 24th in North America.