Does anyone remember a programme that was on ITV quite a few years ago now. Think it was one of these feature length dramas, coudve been anywhere between 3 and 7 episodes. It started off with a train crash i think, and the storyline was something along the lines of the last survivors of some sort of disaster, seem to remember something about the fact they survived because the were trapped underground or something? I was really young at the time so forgive the vagueness, but if anyone can help itd be much appreciated! Thanks :)