Go Da Kyung is an eager rookie investigator who gets paired with the famous forensic doctor, Yoon Ji Hoon. They initially clash due to their different styles of investigation as well as their opposing personalities, but later develop a complex relationship as the two strive to uncover the truth through science.

A Christmas Eve party at a luxury residential building takes a horrific turn when a fire breaks out.

Authorities ignore a scientist's warning of an impending tsunami -- but when his prediction comes true, the locals must scramble to survive.