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.

As Agent Carter plots a rescue mission, Whitney Frost hunts for even more dark power, and Jarvis learns not to make promises he cannot keep.

Peggy and Sousa propose a trade with Whitney Frost, while the SSR gets help from Howard Stark that may be the key to eliminating Zero Matter.

Peggy desperately tries to save Dr. Wilkes with a dangerous plan to stop Whitney Frost. But Thompson makes a surprising move that could destroy them all.

Peggy needs Howard Stark to eliminate Zero Matter as they are faced with a mission none of them could come back from.