The Trigger team settle into their new office, but a scandal breaks out. In the midst of the chaos, Han Do arrives, but is already preparing to leave. Giho struggles to keep to an air date. Oh Soryong steps in to help his team.
Teamwork is everything in the Trigger team, but Han-do stands apart like a lone wolf; Oh So-ryong, intending to shape him into a dedicated investigative producer, enforces intense training; Han-do is hounded by a relentless workhorse.
With Soryong's help, Han Do tracks down the culprit and becomes curious about his justice-fuelled leader. Yet, her reckless dedication makes him uneasy. Joined by Giho, the Trigger team begins a risky investigation.
A suspect in a disappearance case returns twenty years later, seeking out Soryong. Ignoring the Chief Producer's concerns, Soryong goes ahead with the interview. Meanwhile, a woman arrives with a broadcast request.
A building collapses, injuring Soryong and Han Do; at the hospital, Soryong's stern reprimand unsettles Han Do; while investigating the disaster, Han Do discovers a surprising connection to a previous case.
Soryong and Han Do face backlash for their broadcast. Meanwhile, a person seeks out the Trigger team once again after ten years, seeking help for a renewed threat.
Kim Hye-soo
Oh So-ryong
Jeong Seong-il
Han Do
Ju Jong-hyuk
Kang Gi-ho
Shin Jeong-geun
Koo Hyoung-tae
Lee Hae-young
Park Dae-yong