10 Most Unique Star Trek Episodes

Moving now to Deep Space Nine, this second season episode was the first noir crime drama, told in both present and flashback, given to the audience via snippets of Constable Odo's logs. It gave us some of our first views of Terok Nor, the terrifying ore processing station that would go on to become the eponymous Federation outpost.

Odo's time as head of security under Gul Dukat would be revisited again in such episodes as Things Past, but it is here that the hard-boiled nature of the Changeling is truly on display. Coupled with this is his initial meeting with Kira Nerys, leading to the reveal of a hidden crime all of those years later - something that affects both of them deeply.

While The Next Generation and The Original Series had flirted with darkness, this felt like a mission statement for the new show. René Auberjonois is fantastic as the Carver-esque detective, trying to solve a murder across two time-frames. It is perhaps a shame that it wasn't a genre that we spent more time in while the show was airing, but that also only serves to highlight the strength of this outing.