A sect of half-breed "Descendants" with paranormal abilities looks to quell the investigations of disgraced Scotland Yard detective, Emma Brighton after she has a run-in with an Ourea: human looking creatures composed of the five elements. Known as the Elemental Knights, these beings were created by Zeus to assist in his war against Michael. Now Oreios, thought to be the last Ourea, must team up with Emma to save his creator, even if it means destroying his former allies and truly becoming the last of his kind.