Who is this imposter?
Or is he even an imposter at all, or maybe an earlier (or later?)
version of the current incarnation?
Both before and after the revelation of the imposter, Colin maintains his usual wonderful standards.
Weve also got some new aliens, the Terravores, in this one.
Theyre giant robot mosquitoes, and theyre quite well realised (as is a speed boat chase!).
Of course, the Terravores have met the Doctor before, but again, hes not yet met them.
Rating:
2 out of 5