The God Complex plays like Doctor Who as written and directed by Derren Brown.
It should come with a warning for the easily hypnotised.
Lots of levels, lots of possible clues and red herrings and definitely not an episode to watch first if you are new to the game.
It reminded me more of Sapphire & Steel (and in my book that's not a bad thing).
What the kiddies will think of it is a mystery (especially seeing as many of their parents will be equally mystified).