A plot in 2374 by the alien linguist Arturis, who lured the crew of Voyager aboard a disguised ship called the Dauntless so that he could deliver them to the Borg.
The Dauntless deception is the story of Hope and Fear, the final episode of the fourth season of Voyager. Arturis, a gifted linguist, offers to decode a damaged Starfleet message the crew received months before. It appears to direct them to a new starship, the USS Dauntless, whose quantum slipstream drive could take them home in months.
Kathryn Janeway is doubtful and finishes decoding the real message herself. It is an apology from Starfleet, which has no means of bringing them back. The Dauntless is Arturis's own ship in disguise. His people held off the Borg for centuries and were finally assimilated after Janeway's alliance with the Collective removed Species 8472, the one enemy that might have destroyed it.
Arturis flies off with Janeway and Seven of Nine as prisoners. Voyager follows and recovers them, and Arturis is left alone as his ship enters Borg space.