Good Boy

After causing trouble, Dong-ju is demoted to the Insung Metropolitan Police Agency, where hes treated like dead weight and his fellow world-class medalists also face discrimination and scorn. But when a major case erupts, it reignites the fire in their hearts.

Convinced that Ju-yeong is the hit-and-run driver, Dong-ju scrambles to find evidence. Meanwhile, Jong-hyeon heads to the Prosecutors Office at Man-siks request to investigate Gyeong-ils case, and Ju-yeong meets someone in the shadows.

While investigating Ju-yeong, the Special Criminal Investigation Team is forced to hand him over to the prosecution after their sudden intervention. Dong-ju is hospitalized for tests following his car accident, and the team digs deeper into Ju-yeongs true identity and his connections to the prosecution.

Dong-jus assault puts the Special Criminal Investigation Team in a major crisis. Man-sik fights to keep the team together, while the others continue investigating Ju-yeong, weighed down by uncertainty. Meanwhile, Ju-yeong leaves the hospital and heads to an unknown destination.

Han-na is kidnapped, and Dong-ju and Jong-hyeon rush to rescue her, only to find themselves trapped in a deadly crisis. Just when it seems theres no way out, an unexpected gunshot rings out. With an unforeseen sacrifice shaking the team, will they survive?

The Special Criminal Investigation Team reunites and uncovers Joo-youngs big secret. Frightened by Dong-joos countdown challenge, Joo-young takes desperate measures. So who will win in the end?

With no way to retreat, Dong-joo and the team launch their final all-out attack on Joo-young. Moving in without hesitation, they soon face a fierce counterattack and unexpected difficulties. What is written in their fate?

The entire Inseong police force unites and launches a massive operation against Joo-youngs gang. But just when they are close to victory, Joo-youngs most devastating counterattack throws the entire city into chaos.