The unseen war behind the frontlines has just taken a dramatic turn." Russia's FSB has announced the high-profile detention of two alleged saboteurs in the strategic Black Sea port city of Tuapse. Authorities reveal that the suspects were recruited by Ukrainian intelligence to execute a major strike on Russia's vital energy infrastructure. Hosting a massive oil refinery and export terminal, Tuapse has become a major target for long-range drone strikes over the past year. Watch the dramatic details of the FSB's midnight dragnet.