Doctor Who – Series 12, Episode 7 – “Can You Hear Me?”

I found last week's episode - Praxeus, had a lot of potential, but its oh-so-predictable ending and the not-so-subtle message about the environment spoilt it (although most of the critics seemed to disagree with me, so it shows how much I know!). So, with only two more episodes to air this season, there's a lot…