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 discovers her murder investigation has huge ramifications that can destroy her career, as well as everyone near and dear to her.

When Agent Peggy Carter realizes she cannot save Wilkes on her own, she turns to her most unexpected adversary for help, while Whitney makes a move to control the deadly Zero Matter.