The content you're looking for refers to the first episode of the second season of the Korean drama (also known as Mobeomtaxi ). Episode Overview
Do-gi travels to Vietnam to infiltrate a criminal organization that traps young men into working for illegal gambling sites.
They take on a case for a father whose son disappeared after going to Vietnam for a high-paying job.
Kim Do-gi and CEO Jang Sung-chul are still secretly operating Rainbow Taxi.