When a chase after a deserter turns into a manhunt for a criminal at large, Jun-ho and Ho-yeol rush to find him before armed men bring him down.

Suk-bong is pushed over the edge. During their investigation, the D.P. duo learns of events that unfolded at Hwang Jang-soo's discharge.

Jun-ho discovers the extent of the military's secrets — making a critical decision. Oh Min-u pursues crucial evidence to stop it from being released.

While Kim Ru-ri goes public with his motive, Seo Eun sets up a lure to catch him. Jun-ho and Ho-yeol attempt to stop the growing escalation.

Relentless hazing shifts Cho Suk-bong's once-warm personality. Riddled with responsibilities, an enlistee jumps the fence at the dead of night.

Lim Ji-seop and Beom-gu realize that an investigation into a military death isn't as it seems. The government faces a damning accusation.

Jun-ho and Ho-yeol assist with a mission while on break. In an attempt to gain intel, the two go undercover to befriend a deserter's girlfriend.

Ho-yeol makes a deal to help Jun-ho, who faces harsh consequences. In a fight for justice, the trial against the government takes a surprising turn.

Jun-ho and Ho-yeol receive unexpected praise from the military. They later set off to catch a deserter who was bullied relentlessly for being different.

An Jun-ho's keen eye earns him a position in the Deserter Pursuit unit. On his first mission with Park Sung-woo, things don't go quite as planned.

Discharged from the hospital, Han Ho-yeol returns to the base and partners up with Jun-ho to search for a soldier last spotted at a subway station.

Jun-ho navigates his life post-tragedy. Park Beom-gu feels pressure to cover up recent events. A sudden attack shocks the military.