A group of old college friends reunite on a Caribbean scuba diving trip exploring the wreckage of a WWII battleship and find themselves trapped inside the underwater labyrinth of rusted metal surrounded by great white sharks.
The peacefulness of the Midsomer community is shattered by violent crimes, suspects are placed under suspicion, and it is up to a veteran DCI and his young sergeant to calmly and diligently eliminate the innocent and ruthlessly pursue the guilty.
As a young woman lies dying in hospital, we journey through her subconscious as she faces one last fight to say goodbye to her loved ones.
