Trigger (South Korean Television Series)

Trigger is a South Korean action-thriller television series released on the streaming platform Netflix. The series explores a fictional scenario in which South Korea, a nation with strict gun control laws and historically low rates of firearm-related crime, faces a sudden influx of illegal weapons and a subsequent surge in gun-related incidents.

Promotional poster for the series Trigger — Promotional artwork for the series Trigger.

Plot

The narrative centers on the societal disruption caused by the appearance of illegal firearms from unknown sources. Lee Do (played by Kim Nam-Gil) is a righteous detective and former military sniper who works to track the origin of these weapons and curb the rising violence. His path crosses with Moon Baek (played by Kim Young-Kwang), a central figure in the underground arms trade. While Moon Baek maintains an easygoing facade, he is a calculated strategist who orchestrates his operations with precision. The series follows the conflict between these two men as they navigate the dangerous world of illegal arms trafficking.

Cast

The series features a large ensemble cast, including:

Kim Nam-Gil as Lee Do
Kim Young-Kwang as Moon Baek
Park Hoon as Gu Jeong-Man
Gil Hae-Yeon as Oh Kyeong-Suk
Kim Won-Hae as Cho Hyun-Sik
Jung Woong-In as Yoon Won-Cheol
Jo Han-Chul as Captain Joo

Kim Nam-Gil as Lee Do — Kim Nam-Gil portrays the detective Lee Do.

Kim Young-Kwang as Moon Baek — Kim Young-Kwang portrays the arms broker Moon Baek.

Production

The series was directed and written by Kwon Oh-Seung. It consists of 10 episodes and was released on Netflix on July 25, 2025.