Emma and Alon Klein, twins of 17 years old, move with their parents from the big city to Ashmoret, and are absolutely sure their life will be boring. Their feeling is changes when they find out two surprising, seemingly unrelated facts: 1. Half a year ago, three teenagers of their age drowned at sea. 2. The drinking water in Ashmoret are poisonous and forbidden to drink for nearly 20 years. Emma, Alon and their new friends start to investigate the mysteries, to find out secrets and surprising discoveries.