The killer began to make a major move. While the survivors decide to cooperate to find a way out of this island, Sonar's dark secrets are revealed, leading to a shocking story in the past.

12 of them went to a deserted island for the first time, to talk openly, to forgive for the hatred of each other. Leila begged everyone so she could go along, with the savage plan she had prepared to punish everyone. It leads to a tragedy they will never forget in their lifetimes.