Do-hun learns the truth while searching for the sniper who injured his colleague during a mission. Wolfe becomes the target of another sniper.

Chief Oh notices the gunshot wound on Wolfe and recalls someone. Yu-ra gets a call and hears a voice she had long forgotten.

Do-hun is troubled after getting unexpected information about Chief Oh. Yu-ra comes face-to-face with the mysterious caller.

Jo Tae-gu knows about Yu-ra's past, and his subtle threats make her anxious. Do-hun and Chief Oh try to read each other while hiding their true intentions.

Tae-gu consents to leave Korea on one condition. Do-hun finds a picture while tracking down Chief Oh and gets assigned to a sniping mission.

The childhood history of Yu-ra and Tae-gu.

The story when Do-hun first met Yu-ra.

An intruder breaking into Chief Oh’s house while she’s asleep. Fortunately, she hears the intruder approaching to attack her and wakes up just in time to fight them off. She overpowers the attacker and shoots him. Just then, Ma Young-ji calls to inform her that there’s something wrong at the NIS headquarters.