Just watched this one. I cannot help but to admit that the episode was quite impressive, almost intimidating. However, at first sight I felt like I was watching a live-action version of Resident Evil 4 lol. Does anybody share this sentiment?
The Vulcan zombies are mad but seem still not QUITE there. I mean, they still have at least some of their consciousness and intelligence. This feature cannot be more in line with RE's Majinis and Ganados. And their appearance, that scrambled-yet-still-recognizable look also resembles a typical RE enemy unit of the 2000s.
I always enjoyed the scenes where T'Pol's logical side and emotional side come to clash. T'Pol has already gained a lot of role development in that respect, but this is the very first time where she completely loses that facade and reveals the "paranoia, homicidal rage" facet of pre-Sarek Vulcans. This is not easily played, because shows involving strong emotions often make the worst awkward scenes, but Jolene Blalock played it well. The mental deterioration of T'Pol are seen to have clear steps, and when she blasts off, her craze looked genuine. The whole bridge crew(excluding poor Linda Park who hardly even get a technobabble line this time) performed quite well. In addition, Captain Archer shows his fully human side for the first time since the break of the Xindi crisis.
However this episode has notable potholes. The medical and technological capacities of Seleya should be beyond the level of a single, obscure distress call when disaster impends. The fact that all Vulcan zombies uses primitive arms instead of guns(actually nothing but bent pipes) is visually impressive but unconvincing. Most importantly, while the ship apparently still retains most of its basic functions, it blew up without reason right after our hero crew escapes, it seems too good a coincidence: "too good to be real".
My vote is seven.