To the disbelief of Starfleet Command, and especially of Admiral Janeway, the Borg were not vanquished when the USS Voyager destroyed their transwarp conduits. A disabled Borg cube seems to hold the answers to why the Borg are now striking out and killing, without troubling to assimilate their prey. Admiral Janeway, Seven of Nine and a team of Federation scientists know they don't have much time to stop the threat. Meanwhile Captain Jean-Luc Picard and the crew of the USS Enterprise, who barely defeated the Borg who were trapped in Federation space, turn to Ambassador Spock for help. Can they discover what lies behind these strange and chilling developments before the Borg can make their triumphant return?