When Bashir is headed to a conference on Romulus, the danger to him is coming from inside the Federation. But when his spy fantasy starts to bleed into reality, he finds that the Tal Shiar is a very complicated adversary. What’s the difference between a goblet and a snifter? How does one enter the Sloan Zone? Is the Romulan Clip Show device the scariest tech in Trek? It’s the episode where we take everything to the dome.