One of the more buzzed about events at Comic-Con 2013 was the premiere of the fourth 'Marvel One-Shot' short film, 'Agent Carter.' It pics up with 'Captain America: The First Avenger' character Peggy Carter (Hayley Atwell) as she goes on a mission, and now there's a clip from the short.

Those hoping to see the rest will have to wait until 'Iron Man 3' hits DVD and Blu-ray on September 24, but we saw the short and liked it when it premiered at San Diego this weekend -- it's definitely the best of Marvel's One-Shot spin-off movies. We also enjoyed talking to Atwell about her work in it. Alas, the official release is a little over two months away.

Here's the short's synopsis:

Picking up where the events of CAPTAIN AMERICA: THE FIRST AVENGER left off, “Agent Carter” tracks British operative Peggy Carter (THE FIRST AVENGER’s Hayley Atwell) 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.