In my concept Atlantis is found by a lone explorer in a dystopian world. He delves underwater and becomes lost in a massive submerged cave system. He is saved by a strange young boy. The boy leads him through the waters to a small civilization. The people are all friendly and receptive to him aside from one, a royal handler with a deep respect for the ways of old. She is cautious of him and the longer he stays the more she sees in him the greed and hubris that led to the original downfall of Atlantis.