This represents the first major stumbling block for the new series. Tonally it is a bit all over the place - it’s the burping bin in Rose, but for a much larger chunk of the run time. However, because of RTD’s natural ability to create enticing, likeable characters, as a whole package this story still works out okay. Thanks to Jackie (“The Slikeen!”), Mickey (/Ricky), Harriet Jones (and her cottage hospital plan) Rose and The Doctor have plenty to bounce off of.

Rose being reported as a missing person during her time away from early 21st century earth is yet another realistic detail Russell brings into the series. This story shines a light on what happens to those who are left behind - and foregrounds those characters, building a strong and rich world around our companion. RTD nailed this.

Farting aliens and the inexplicable transformation of Mickey into a computer expert who can subvert national security surveillance does not quite have the same level of rigour… but it doesn’t really matter. The emotional beats are there, and all audiences care about are character journeys and emotion.