AU. Kai, Wolf, Thorne, and Jacin work for the undercover organization Men in Black, regulating incoming Lunars, who—unbeknownst to Earthens—come to Earth and sometimes use their glamour illegally. Part 1: Kai vows to track down the unidentified Lunar cyborg who managed to evade capture. Part 2: Thorne's romantic entanglements begin to interfere with a highly classified mission.