Starfleet Command reactivates a long dormant survey mission in a sector known as The Gilese Verge, which was disregarded as “strategically unremarkable.” The original ship tasked with charting it, the USS Winslow, disappeared without a trace after only a partial mapping, and all of the information from the mission was sealed.

Now, the USS Leif Erikson is ordered to complete this mission, and discover what happened to the Winslow and her crew.