Final episode is here of the four part drama that has gripped the nation this week. And tonight, we had better find out just what the bloody hell happened to poor Amber. The show seems to be steering us off in various directions, with clues apparently splattered everywhere. One big one, I sadly think, is the missing teenager's obsession with under the sea. I may be wrong though! Tonight sees dad Ben becoming more and more convinced that his daughter was befriended by an online predator. At this stage, a happy outcome seems to have long gone off the cards, but we won't give up all hope quite yet.