Episode 4 - S1.E4

After missing Charlie, the suspected industrial spy and underboss of Triad, Ji Sung lashes out at Do Kyung. Ha Jun scolds him for being harsh, but Do Kyung says she understands Ji Sung. Meanwhile, Do Kyung surprisingly bumps into Charlie. After a quick encounter, Do Kyung runs to get help but gets held hostage by Charlie. Watching the event at the monitoring room, Ji Sung rushes to the site and faces Charlie.