Charlie, a fiery and brilliant young actress, meets a mysterious stranger on the beach in Greece and he draws her into a high-stakes international espionage operation.
Charlie drives a car laden with explosives to a drop-off in Austria; Kurtz and Becker race to save Charlie from a fatal misstep.
Charlie awaits contact from Michel's network but worries whether her performance will hold up under scrutiny; she and Becker share a last moment together before she crosses the point of no return.
Charlie joins a group of revolutionaries in Lebanon, with no one to save her if she is exposed as a spy; she works to earn the trust of Khalil and Michel's sister, Fatmeh.
Charlie trains to prepare for her part in Khalil's next strike, but it becomes unclear whose side she is on.