It's 1946, and peace has dealt Peggy Carter a serious blow as she finds herself marginalized when the men return home from fighting abroad. Working for the covert SSR (Strategic Scientific Reserve), Peggy must balance doing administrative work and going on secret missions for Howard Stark all while trying to navigate life as a single woman in America, in the wake of losing the love of her life - Steve Rogers.
Peggy is cornered and more vulnerable than ever as Leviathan makes their move against her. As the SSR zeroes in on Howard Stark, they may pay the ultimate price as they find their true enemy is closer than they realized.
Peggy moves to the City of Angels to help Chief Daniel Sousa at the West Coast Strategic Scientific Reserve (SSR) investigate a bizarre homicide involving an alleged killer and Isodyne Energy, and reunites with some familiar faces.
Howard Stark's deadliest weapon has fallen into enemy hands, and only Agent Carter can recover it. But can she do so before her undercover mission is discovered by SSR Chief Dooley and Agent Thompson?
Peggy may be in more trouble than usual when fugitive Howard Stark suddenly returns for mysterious reasons. And Chief Dooley chases a new clue all the way to Europe that threatens to destroy Peggy's future at the SSR.