Russia's Federal Security Service traces a direct line back to the KGB, and this film lays out how it operates today as an arm of the Kremlin rather than a check on it. The story runs through coup plots, contract killings, and the kind of sex scandals used to discredit political enemies, before landing on the case that made international headlines: radioactive poisoning used against a defector who thought distance from Moscow meant safety. The film argues that under Vladimir Putin, himself a former KGB officer, the agency's reach extends well past Russia's borders, making exile an unreliable form of protection for critics and defectors alike. Historians and Russia specialists lay out the FSB's institutional lineage from Soviet state security through the chaotic 1990s to its consolidation of power under Putin, using archival footage and case-by-case examples rather than broad claims. The result reads less like spy fiction and more like a catalog of methods a state security service has been willing to use against its own former agents.