Although Elizabeth assures Philip Martha is safe, Philip, disguised as Clark, decides to take Martha to a safe house, where Gabriel is. Gabriel is upset because he's disobeying orders, Elizabeth, when she comes by, is upset Philip has shown Martha his true identity, and Martha is upset "Clark" is leaving her out of the loop, though when he tells her he really works for the Soviet Union, she's even more freaked. When "Clark" leaves her alone with Gabriel, she can't take it anymore, and while he tries to placate her, she warns she'll reveal his identity if he goes near her, and she storms off. Meanwhile, the FBI tries to track her down after Stan and Aderholt search "Clark's" place, and Arkady directs the Rezidentura - specifically, Oleg and Tatiana - to make plans to exfiltrate her.
Philip meets with William, who tells him about a new biological weapon, but he tells Philip they really shouldn't use it because it's that deadly.
This episode contains examples of:
- Back Story: William tells Philip the Rezidentura sent his own wife back to the Soviet Union, which he's still upset about.
- Call-Back: Elizabeth makes Paige and Henry a Korean dish she learned from Young-Hee.
- Oleg tells Tatiana about how his mother has been upset over his brother's death.
- Immodest Orgasm: Phillip and Martha have Comfort Sex loud enough for Gabriel to hear.
- Internal Reveal: Martha finally learns "Clark" is working for the Soviet Union.
- The Last Straw: After the Trauma Conga Line that she's gone through the last season or so, it's "Clark" leaving her alone that makes Martha finally snap and storm off away from the safe house.
- Sealed Evil in a Can: William delivers another pathogen... in the form of a dead lab rat inside a glass jar.
- Shout-Out: Martha watches an episode of Happy Days.
- Two Lines, No Waiting: Unusually for this show, the only plotlines here are Martha's and William's.
