DS9 S7E06 - Treachery, Faith, and the Great River

We learn a lot in this episode. We learn that the Federation's multicultural values are not just talk as we see Nog excel not just as a Starfleet officer, but as a wheeling and dealing Ferengi. We learn that the Dominion is not the unified front that it tries to present. And if the title is anything to go by, we learn that the Oxford command does not survive to the 24th century.