However in the case of "Cold Blood," Chibnall took the same approach to the second half that Moffat did with "Flesh And Stone." The episode picks up right where we left off in "The Hungry Earth," and once again the episode is chok full of nods to the original series. While Amy and Mo wandered the underground caverns, I couldn't help but be reminded of many a Third Doctor story, where Pertwee was exploring similar caverns.
As a diehard fan of the original series, I have a tendency to point out the little things that most viewers probably don't even notice. One of these little tid bits is the character names. For whatever reason, the original series seldom used common names for the characters in a particular story, whether it they be human or otherwise. The Silurian names stuck out in particular to me, as they were intentionally made to not sound like something you would hear above ground - "Alaya," "Restac," "Eldane," and "Malohkeh." Props for taking to time to be creative, Chibnall.
The story generally follows a universal narrative, without ever deviating for subplots. It only starts to go into a slight downturn right at the end - where once again, Rory dies. If you're still keeping count with me, that's two (2) deaths for Rory so far, and he's only been an official companion for four episodes. With Rory's death enters the usual sobbing, screaming companion scene. It almost as if all of the over-the-top drama was saved until the last ten minutes of the episode, where two episode's worth of drama was released, and thus causing the steady flow of the story to abruptly be disturbed.
There were a few scenes where I felt the CGI backdrops were a bit overdone, namely the one of the "Star Wars clone army" scene of Silurian soldiers. Now, in the Davies era, it would only have been a matter of time before that CGI army would have been marching up to the surface, but thankfully here, the backdrop scene is the only time we have to deal with a CGI army. Even after Restac has started releasing the soldiers, we never see any CGI Silurians, only the real ones.
The ending begs to question a few actions that I'm not quite sure analytical fans such as myself couldn't explain. For one, Moffat had already demonstrated that any object coming into contact with the light beaming from the crack in the wall would be instantly removed from history, yet here The Doctor is able to walk right up to the crack, stick his arm through, grab a piece from the other side and walk away unscathed.
The final scene definitely had be eager to see the rest of the season the first time I saw it, where the object The Doctor grabs from the crack in the wall turns out to be a charred piece of the TARDIS.
Another fantastic story, and tastefully done. At this point, it was clear that Series 5/Season 31 was going to blow the Davies era out of the water as far was traditional Doctor Who was concerned.