Every crime has its answer! Crimes are becoming more diverse by the day... Profiler Kwon Il-yong has opened a specialized training school to discover 'Secret Profilers' to combat them! Joining him are crime enthusiast Seo Jang-hoon, intuition expert Lee Jin-ho, mystery movie buff Kim Min-ah, and various aspiring profilers! Can they clear all the 'step-by-step real crime deduction quizzes' and become the 'Secret Profilers' who will save the world?