UNIT gets help from an unexpected arrival – who, as usual, has only one person’s interests at heart…

Barring a couple of minor moments where the foreshadowing is done a little too heavy-handedly, this is a triumphant conclusion to one of the best UNIT box sets. As director Ken Bentley notes in the extras, it feels as if everything is firing on all cylinders, with strong performances from all the regulars matched by the key guest star, Sir Derek Jacobi, whose War Master has fast become my favourite incarnation of the character on audio, thanks in part to the Delgado-esque suavity that he brings to the most sadistic and amoral moments.

The plundering of different elements of the Cyber-mythos continues in Matt Fitton’s script (what is it about Battersea Power Station that attracts them?!), with Nicholas Briggs vocally conjuring up the disparate parts to good effect. Bentley ensures that we never lose sight of the threat posed by either Time Lord or Cybermen while maintaining the rapidfire pace that the story requires.

Verdict: Great confrontations between Jemma Redgrave’s Kate and Derek Jacobi’s Master at the heart of a terrific conclusion. 10/10

Paul Simpson