Face of the Enemy

Counselor Troi wakes aboard the Romulan warbird Khazara, surgically altered to look Romulan. Sub-commander N'Vek, a member of Spock's underground movement, has kidnapped her to pose as Major Rakal of the Tal Shiar, the Romulan intelligence service. Their secret cargo is a group of defectors, including Vice Proconsul M'Ret. Meanwhile the Enterprise takes aboard Stefan DeSeve, a Starfleet officer who defected to Romulus years before, bringing a message from Spock. Troi must bluff the warbird's suspicious Commander Toreth at every turn. When the planned handover to a freighter fails, N'Vek destroys it, and Troi takes charge of the plan herself. She lets the Enterprise track the cloaked ship, then uses a staged confrontation to beam the defectors across. N'Vek is killed when his betrayal is uncovered, but Troi is beamed safely home as the warbird escapes.