Spock's mission on Romulus raises the prospect of Vulcan-Romulan reunification.
Picard and Data are in Romulus, where they meet Spock, who is working on a daring plan to bring the Romulans and Vulcans together. Spock hopes to persuade the Romulan people to reunify with the Vulcans, an idea that is dear to him. But the Romulan leadership has its own plans, and the proconsul Neral has a hidden agenda.
The two Starfleet officers must escape from a trap while the Enterprise tries to help. The episode combines political intrigue with the sentimental pull of seeing Spock and Picard together. It is a satisfying conclusion, with a moving farewell between Picard and Spock, and a note of hope for the future of the two races.