A profiler and a prosecutor must uncover the hidden secrets surrounding unique items with supernatural powers and a conspiracy. Kang Gon is a prosecutor full of justice and a warm heart. In order to save his niece Da In, he jumps into a conspiracy surrounding an item having supernatural powers. Kang Gon works with a criminal profiler Shin So Yeong.

Benny and Claire, a down-on-their-luck couple, find a discarded Chitauri weapon referred to as 'Item 47'.