The drama revolves around six youths: the strategic and decisive Song Ci, the highly skilled physician Bai Xue Yan, the photographic memory holder Li Zi Fang, the mysterious and reserved Zhao Xiao Liu, the formidable martial artist Yin Qiao, and the ingenious planner Shen Xi Yue. These six individuals come together for various reasons and, working together, solve numerous mysterious and intricate cases. After facing several life-threatening challenges, the once young and naive youths gradually mature. United in purpose, they dispel the fog of mystery and harbor a sense of justice to protect their home and country.