后宫斗争，皇后与阎妃同时怀孕，为保住地位，阎妃与其兄—阎兆良—诬指皇后叛国，使其满门被斩；皇后一人逃出宫外，沦落市井，生下了龙子，却遭人掉包为女婴。 二十年后，流落民间的太子皓天、皇后的养女小青、阎姬的儿子启贤均长大成人，且因缘际会于民间相遇；启贤强夺小青，幸为皓天所救，两人情投意合；且皓天无意中救了微服出巡的皇帝，并入宫当侍卫保护皇帝；皓天、启贤、小青三人的恩怨遂从民间转而延伸至宫廷内……
As Leo's replacement Thomas Chamberlain arrives Nikki investigates the murders of Rachel Freedman, shot in the head, and her little autistic son Nathan, who was poisoned. Nikki rejects policewoman Anne Burchett's theory that Rachel killed them both but is perturbed when an impostor, claiming to be Rachel's sister, visits the morgue. At the same time the disfigured corpse of Eva Liron is discovered, killed with the same poison as Nathan. She had been the nanny to French hot shot footballer Isaac Dreyfus and was planning to blackmail him over a sex tape of them both. Jewish Isaac is a controversial figure due to his anti-Muslim sentiments but he denies ant part in the murders. Then another victim, Isaac's agent Mousa, is discovered dead.
A rootless genius, Iris Nixon, steals an enigmatic code from a charming philanthropist and disappears. A tense countdown ensues as she races to unravel the code's mystery.
