Peggy Carter is a tough woman to pin down.

Hayley Atwell isn't going down without a fight in the latest clip from "Marvel One Shot: Agent Carter," a short that will be included as an extra on "Iron Man 3's" forthcoming home-video release. Directed by Louis D'Esposito (who also helmed "Marvel One Shot: Item 47"), the film centers of Peggy's search for the mysterious "Zodiac" one year after the events depicted in "Captain America: The First Avenger." Check out the clip below and let us know what you think.

"Iron Man 3" hits Blu-ray, 3D Blu-ray, DVD, digital copy and On Demand September 24. You can view a previously-released clip from "Agent Carter" here.

A former contributor to sites including MTV's The Backlot and Bloody-Disgusting, Chris Eggertsen worked in film development before indulging his love of pop culture writing full time. He specializes in horror, the intersection of social issues and entertainment and Howard Stern. He's on Twitter @HitFixChris.