Seasons & episodes

S1 · E1Episode 1 2025-07-25 · 50 min＋

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.

S1 · E2Episode 2 2025-07-25 · 61 min＋

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.

S1 · E3Episode 3 2025-07-25 · 43 min＋

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.

S1 · E4Episode 4 2025-07-25 · 55 min＋

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.

S1 · E5Episode 5 2025-07-25 · 45 min＋

Guns reach bullied students and grieving parents, sparking new tragedies. Lee Do uncovers a network delivering weapons to vulnerable people across Korea.

S1 · E6Episode 6 2025-07-25 · 44 min＋

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.

S1 · E7Episode 7 2025-07-25 · 46 min＋

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.

S1 · E8Episode 8 2025-07-25 · 46 min＋

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.

S1 · E9Episode 9 2025-07-25 · 37 min＋

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.

S1 · E10Episode 10 2025-07-25 · 41 min＋

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.