Action & Adventure Crime Drama
S01E01 • 7.7/10 • 50m • 25 Jul 2025 • KR •

Trigger (2025) S01E01 – Episode 1

When a shocking mass shooting shatters Korea's calm, Lee Do races to stop the violence — then realizes the threat of illegal guns is just beginning.

Cast

Park Yoon-ho
Park Yoon-ho
Park Gyu-jin
Kim Nam-gil
Kim Nam-gil
Lee Do
Kim Young-kwang
Kim Young-kwang
Moon Baek
Moon Seong-hyun
Moon Seong-hyun
Teenage Moon Baek
Park Hoon
Park Hoon
Koo Jeong-man
Kil Hae-yeon
Kil Hae-yeon
Oh Gyeong-suk
Kim Won-hae
Kim Won-hae
Cho Hyeon-sik
Woo Ji-hyun
Woo Ji-hyun
Yoo Jeong-tae
Jung Woong-in
Jung Woong-in
Yoon Won-cheol
Cho Han-cheul
Cho Han-cheul
Captain Joo
Ahn Se-ho
Ahn Se-ho
Kim Deok-hyeon
Cha Rae-hyung
Cha Rae-hyung
Seo Hyeong-ju
Jang Dong-ju
Jang Dong-ju
Jang Jeong-woo
Son Bo-seung
Son Bo-seung
Seo Young-dong
Hong Min-gi
Hong Min-gi
Kang Seong-jun
Kim Joong-hee
Kim Joong-hee
Reporter Wang
Park Kwang-jae
Park Kwang-jae
Yong-gu
Sun Woo-sun
Sun Woo-sun
[Psychiatrist]
Kang Chae-young
Kang Chae-young
Park So-hyeon [Nu...
Kong Hyun-ji
Kong Hyun-ji
Cho Se-yeong [Hye...

Episodes

Trigger (2025) S01E01 – Episode 1 S01E01 50m
25 Jul 25
Trigger (2025) S01E01 – Episode 1
When a shocking mass shooting shatters Korea's calm, Lee Do races to stop the violence — then realizes the threat of illegal guns is just beginning.
Trigger (2025) S01E02 – Episode 2 S01E02 61m
25 Jul 25
Trigger (2025) S01E02 – Episode 2
As shootings spread, Lee Do discovers guns in the hands of everyday citizens. When a victim hits close to home, his investigation grows more urgent.
Trigger (2025) S01E03 – Episode 3 S01E03 43m
25 Jul 25
Trigger (2025) S01E03 – Episode 3
A police raid uncovers a cache of military weapons. Lee Do and his new ally Moon Baek close in on the arms network as the city reels from bloodshed.
Trigger (2025) S01E04 – Episode 4 S01E04 55m
25 Jul 25
Trigger (2025) S01E04 – Episode 4
Lee Do confronts a violent standoff and must decide how far to go to stop the killings, while suspicions about Moon Baek threaten their fragile alliance.
Trigger (2025) S01E05 – Episode 5 S01E05 45m
25 Jul 25
Trigger (2025) S01E05 – Episode 5
Guns reach bullied students and grieving parents, sparking new tragedies. Lee Do uncovers a network delivering weapons to vulnerable people across Korea.
Trigger (2025) S01E06 – Episode 6 S01E06 44m
25 Jul 25
Trigger (2025) S01E06 – Episode 6
A gun in the hands of a student spells crisis at school. As panic spreads, Lee Do and Moon Baek race rush to restore order — but it may be too late.
Trigger (2025) S01E07 – Episode 7 S01E07 46m
25 Jul 25
Trigger (2025) S01E07 – Episode 7
As fear and confusion grow, police and gangs rush to recover illegal guns. Lee Do feels powerless as the true scale of the arms crisis comes to light.
Trigger (2025) S01E08 – Episode 8 S01E08 46m
25 Jul 25
Trigger (2025) S01E08 – Episode 8
Police raid the gun syndicate, and rival gangs and old enemies clash in bloody battles. Lee Do is pushed to the limits as violence hits all of Korea.
Trigger (2025) S01E09 – Episode 9 S01E09 37m
25 Jul 25
Trigger (2025) S01E09 – Episode 9
As guns reach new hands and fear sweeps the nation, Moon Baek's message echoes through the media. Across Korea, people must choose how to respond.
Trigger (2025) S01E10 – Episode 10 S01E10 41m
25 Jul 25
Trigger (2025) S01E10 – Episode 10
With emotions running high, Lee Do and Moon Baek move toward a crossroads. One final choice will shape Korea's future — or plunge it into darkness.

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