Light at the End of the Tunnel - S3.E1

Jack is observing with the cave rescue team when they are called out to an emergency. A group of schoolchildren and their teacher have become trapped inside.

Beth and Kim have a mid morning break. It's Jack and Beth's first wedding anniversary and Beth is convinced that Jack has forgotten. Kim assures her that he's probably got a big romantic surprise planned. Jack calls Beth at The Beeches. She is concerned when he tells her he will be taking part in the rescue. His mobile cuts out as he is about to wish her 'Happy Anniversary'.

Isabel visits Paul; and old friend and a doctor. Isabel has cancer of the pancreas. Paul informs Isabel that she could have several months of good living before her condition worsens. The news isn't of any comfort to Isabel who confides in Paul that she has yet to tell anyone of her condition - not even Beth.

Despite opposition and bad weather; the cave rescues leader Tommo insists that the rescue go ahead. He takes a team underground including Jack as the onl