The synopsis seems to hint at an appearance from Dominic Cooper as Howard Stark, and references something called Zero Matter:
Peggy’s search for the truth about Zero Matter puts her on a collision course with her superiors as Howard Stark barnstorms in.
“Better Angels” will air on ABC on Jan. 26.
Agent Carter returns to ABC on Jan. 19, with a two-hour premiere starting at 9 p.m. ET.