Young Koreans struggle to get a regular, full time job when they have no connections or money like Sang-su, or for women, like Jeong-o.

In order to help a senior colleague chase down a suspect officer Oh Yang-chon disregards a call from his wife about a family emergency.

The officers face their first violent crime; Yang-chon hopes new evidence will prove him innocent.

Yang-chon has trouble with the other officers; Jeong-o heads to a reported domestic incident.

The officers must deal with tough cases, infighting and family troubles.

The patrol deals with the aftermath of Jeong-o's incident; Internal Affairs gets involved in the investigation that includes Jeong-o and Kang Nam-il.