After uncovering Section 31 sleeper agents aboard Starbase 113, Commodore Janeway and Admiral Townsend receive intelligence that points to an even more dangerous operative: the 14th Rogue, a high-ranking Section 31 agent embedded within Starfleet Command HQ on Earth. This rogue agent has been orchestrating covert missions to destabilize Starfleet from the inside, and now the Halo and Voyager crews must stop the agent before they enact their next plan.

Upon arriving at Starfleet Command HQ, they discover signs of sabotage—compromised communications and suspicious behavior from key personnel suggest the 14th Rogue has already begun their final phase. John Fitzgerald, the Halo’s tactical officer, leads a team to conduct a covert investigation within Command, following leads that point to encrypted Section 31 transmissions. The team uncovers a plot to seize control of a powerful prototype starship under development at Utopia Planitia.

As tensions rise, Admiral Townsend leads a strike team to neutralize the 14th Rogue, while Commodore Janeway coordinates the efforts to stop the launch of the prototype ship. But with officers compromised and alliances unclear, the crew must tread carefully. Every step of the mission is filled with danger as they face off against loyal Section 31 agents hidden within the highest ranks of Starfleet.