The documentary opened with a discussion of the narrative structure of the piece, underlining the difficulties of crafting a satisfying whodunit. Pip and Jane Baker went into some detail of how and why they decided to use plants as the central enemy. Director Chris Clough offered commentary on how difficult it was to realise the Vervoids. Hickman and Sangster had a brief discussion on the general sameness of the cliffhangers in the serial. Respondents gave wide-raning opinions on the set design of the piece, praising some sets and disliking others.