Without giving away much. As HappyDayRiot said it is the first two Voyager books set after their return to the Alpha Quadrant and is more about them coming home and coping with that. However even the part of it that involves Borg technology and that threat is not The Borg (from the Delta Quadrant, that has been a threat to SF for many years). It is a misguided Admiral in Starfleet who is trying to use that technology for very bad things. WHAT?!?!? Before Dishonor was far from just being the repercussions of the previous book. And it in fact did have quite a large Borg attack of its own. Larger, IMO, than any other Borg attack we've seen to date.