As the crew of the Enterprise moves toward an uncertain future, one of their own will be pulled into a violent past! While investigating a mysterious structure on Vulcan, Spock vanishes. As the crew tries to find him, Spock must fight to survive as he navigates the painful past of his home planet. The final voyages of the original crew continue in this time-hoping adventure from writer Brandon Easton (Transformers: War for Cybertron, Thundercats) and artist Silvia Califano (Star Trek: Year Five, X-Files: Case Files)