Theory:Doctor Who television discontinuity and plot holes/The Mutants


 * In his first scene in the story, Jon Pertwee says "I couldn't open it even if I wanted to" twice in rapid succession.
 * He's emphasizing the point.


 * In Episode 3, Stubbs and Cotton wonder aloud if the Marshal is on to them. The camera moves to follow them, revealing a third guard standing less than a meter away, who is presumably deaf to their confession of treason.
 * He wasn't paying attention, or simply didn't hear them, despite their relative proximity.


 * The conversation about the gas that serves as the cliffhanger of Episode 3 and the opening of Episode 4 is a different take (or at least a different angle) in each episode.


 * Why do Sondergaard and the Doctor need to remain in the caves to work on the translation? They could just as easily do it in Varan's village.
 * They prefer to work without interruption.