Just watched it and really enjoyed, however it seem to just end after a comment made by the bearded chap about the Britons and the forest, all the other episodes in the series have a proper ending with credits, just feels like there was supposed to be a bit more to the episode, and yes I have replayed it.

yes, I noticed that too - it seems cut off at the end. Great documentary though. I wish they were longer! I've never visited the place and was amazed how little was left and how much the reconstruction could show us.