Star Trek The Next Generation. Section 31. Rogue

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They are the self-appointed protectors of the Federation. Amoral, shrouded in secrecy, answerable to no one, Section 31 is the mysterious covert operations division of Starfleet, a rogue shadow group committed to safeguarding the Federation at any cost. Six months before their ultimate battle against the Borg for the fate of Earth, Captain Jean-Luc Piccard and the crew of the "USS Enterprise"™ face a very different kind of crisis. A world in turmoil becomes the focal point of conspiracies and betrayal as an unexpected reunion brings with it startling revelations. Old friends become bitter enemies and one young officer reaches a crossroad when he's forced to choose between the greater good of the Federation and the ideals for which it stands.NO LAW. NO CONSCIENCE. NO STOPPING THEM.