In the wake of political upheaval across the United Federation of Planets, Admiral William Riker and the crew of the U.S.S. Titanfind themselves in uncertain waters as roles aboard the ship change to reflect a new mandate and a new mission. On orders from Starfleet, Titansets out toward the edge of Federation space to tackle its latest assignment: to work with an alien species known as the Dinac, who are taking their first steps into the galaxy at large as a newly warp-capable civilization. But when disaster befalls the Dinac, the Titancrew discovers they have unknowingly drawn the attention of a deadly, merciless enemy-a nightmare from Riker's past lurking in the darkness. Friendships will be tested to the limit as familiar faces and new allies must risk everything in a fight against an unstoppable invader-or a horrific threat will be unleashed on the galaxy!