A really great episode from the first season of Deep Space Nine. It acts as both a good charactor building story of Odo and adds some interesting background in relation to Odo's Changeling history. We're also given some hints regarding Odo's race that will feature more prominently in later episodes. The other aspects to 'Vortex' which really establish DS9 as a show which likes to draw upon 'grey areas' is the charactor of Croden, where one dismisses him at first but develops an affection towards him as the story unfolds. Previous episodes of the first season try to build on the good/bad nature of various individuals, but this is the first one which I think works exceptionally well.
Review of Vortex
