The "Trigger" team gets hit by a scandal on their first day in the new office. Amid the chaos, Oh So-ryong steps in to help the team pull it together.

Teamwork is everything in the "Trigger" team but Han-do stands apart like a lone wolf. Things only get worse when he is accused in a bizarre case.

With So-ryong's help, Han-do tracks down the culprit and becomes curious about his leader. The "Trigger" team begins a risky investigation.

A suspect in a disappearance case returns twenty years later. A woman arrives with a broadcast request and Dr. Trigger's identity is revealed.

A building collapses, injuring So-ryong and Han-do. While investigating the disaster, Han-do finds a surprising connection to a past case.

So-ryong and Han-do face backlash for their broadcast. Meanwhile, a person seeks out the "Trigger" team once again after ten years.

A surprising confession unsettles So-ryong and Han-do but they must dive into the investigation together. So-ryong makes a tough decision on the way.

So-ryong and Han-do are given cryptic clues on the disappearance case. An incident at the hospital prompts a flood of articles blaming So-ryong.

Soryong joins forces with Han Do to dive into the Cha Seongwook disappearance case. Han Do's memories of the past resurface during the investigation.

Soryong faces backlash as she learns shocking news about "Trigger's" sources. Soryong uncovers heavy truths behind the case from twenty years ago.

An unexpected delivery is made to the "Trigger" office. As the team searches for hidden clues, they are led into a dangerous chase.

Apathy and silence empower criminals. If "Trigger" fails to air this broadcast, these shameless villains will grow bolder.