Entertainment Weekly tells us the following:
As the title suggests, the latest in Marvel’s short-film series explores the post-Captain America heroics of British operative Peggy Carter. Hayley Atwell (TV’s The Pillars of the Earth) reprises her role as an analyst with the nascent S.H.I.E.L.D. organization, the SSR (Strategic Scientific Reserve.) They do things like, you know, build super-soldiers, fight evil, and go in search of the enigmatic “Zodiac.”
Agent Carter is in on the ground floor — but looking up at a glass ceiling.
Click through for more details from D’Esposito, and a look at each of the new images from the movie — along with details on how to be among the first to see it at Comic-Con.
Otherwise, you’ll have to wait until Sept. 24 when the short turns up on the Iron Man 3 Blu-ray release.