This episode was the first Ncuti episode this season that I liked so far. Actually, not liked, loved! Everything about this episode, from the side characters, to the Doctor and Ruby, to the plot was absolutely amazing. I, like others, was hesitant about Moffats return and was scared of this story being too "Moffaty" in a bad way. Well, it was extremely "Moffaty" but in the greatest way. Confining the story to one area helped streamline the story greatly unlike the messy plots of Space Babies and TDC. Seeing Ncuti play a more serious and grounded version of the Doctor is much more preferable to the over energetic and over acted Doctor we see in both Space Babies and TDC. Another great part about this episode is the numerous call backs to previous Moffat episodes like fish fingers and custard, Villengard, Anglican Marines, and "the moon and the presidents wife". These references never distract us from the plot and serve as great easter eggs for the devoted fans. Ruby's mystery is also getting more and more interesting with her age being extremely high. Susan Twist also got a much bigger role this time and I'm very interested in what her role in the season ends up being. In conclusion, this episode has gotten me completely back on track with the season after 2 episodes that were, to me, incredibly boring and not entertaining. I'm really excited for 73 Yards and getting more of the mystery unraveled.