When a spy posing as a politician's wife learns her lover has been murdered, an old assassin friend joins her on a quest for truth — and vengeance.
As her husband steps up as prime minister, Helen helps Reed steal files codenamed Wildflower and a shadowy organization coerces Sam into a contract.
Helen realizes her investigation into Reed's mysterious past connects to Sam's new targets — just after he silences their best hope for answers.
Sam grapples with the fallout of a desperate choice. Helen presses an old foe for answers on Reed and Wildflower before a tense dinner with the Chernovs.
East Berlin, 1988. Reed's cover in Kestrel is blown when a botched mission forces an unforgivable choice — and its deadly aftermath reaches into the present.
Helen recruits Sam, Williams and Eleanor to extract a high profile target from a secure site, but Kestrel's influence threatens the mission.
Kestrel enacts its plan ahead of Wallace's peace summit — forcing Sam to decide where his loyalties lie, and pushing Helen to admit a dangerous truth.