Our story opens with a myth that every year seven people end up in the sea, because the sea is the beginning and the end of everything, it is the source of life and of survival, therefore a human sacrifice must be presented to it, willingly or unwillingly. The story is set in a place connecting present times and the past, the characters present and those disappeared, the living and the dead. Myths and legends determine the lives of the characters of the series "Debt to the Sea" in a specific way, and their interconnected complex destinies are told in a mystic atmosphere. Is the legend about the sea taking human offerings true? Are only the two stones with the same sign carved in them to be blamed for all the events, or are the reasons hidden among people and their secrets?
The show follows 18 contestants, teleported in batches of six into the Plane by Airy, who compete in his ill-planned, simplistic competition show where the winner receives a wish for whatever they want.
This true crime series tells the stories of Britain's most high-profile young killers. Different cases are discussed from the view of the witnesses who gave first-hand testimonies and interviews with the friends, family and professionals involved. Over the past 20 years, approximately 400 children have been convicted for murder in the United Kingdom. An investigation into what prompted this behaviour in those kids is carried out as the show profiles some of the most shocking incidents to hit the headlines.