this two parter be excellent the best since the series return . sure bit of the story be pinch from previous film and but what tv show do not do that these day . what we get here be a cracking good sci fi story . a great big ( really scary ) monster imprison at the base of a deep pit and some superb alien in the ood the best new alien the revive series have come up with and a set of basically sympathetic and believable human character ( complete with a couple of unnamed expendable security people in true star trek fashion ) and some large scale philosophical theme ( love and loyalty and faith and etc . ) and and some top drawer special effect . i love every minute of this .