The agents were on a mission to arrest and put an end to the people behind Pi Chul Woong's illegal transaction. Team leader Mr. Dong requested for a backup from the NIS director for their high-level operation.
Chan Mi exchanged punches with the gang leader while Ye-eun and Mi Soon tried to disconnect all the wirings to stop the bomb. A timer was set to explode in seconds, and they needed to stop, or else they all will die.
Pi Chul was tied up in a vested bomb, ready to explode. The first connection was cut, but another bomb was set, which gave them only 30 seconds. Ye-eun and Mi Soon slowly took off the vest bomb from Pi Chul and threw it where the gang leader tries to escape. The agents survived the explosion.
They were all sent to the hospital for a medical check-up. Chan Mi injured her right arm, and she needed to wear a cast to heal faster.
The "Good Casting" team failed to capture the culprit and put Pi Chul's life in danger. The chip was not in their position, which lost their chance to find Michael.
Ye-eun returned home and was happy to see her daughter after a tough day. She wished to find the records of her husband's cause of death. She needed access to a higher position.
Chan Mi found out that CEO Seuk Ho got married and a divorcee with stakeholder Shim Hwa Ran. She is one of the secret contacts with NIS chief Seo Gook. She works for money and consistent in getting more shares from the HITECH company.
A flashback of Chan Mi and Seuk Ho's younger days together appeared. Chan Mi got a part-time job as a private tutor for Seuk Ho. They spent more time as they studied and went out together. Seuk Ho was about to propose as they become an official couple, but it never happened when his mother died of an illness. Chan Mi never got the chance to say goodbye and comfort Seuk Ho.
Lead Researcher Ok Chul was about to meet Michael for another transaction. Mi Soon took the operation to be on the field. Chan Mi went out for a blind date, which she missed the chance to work. Ye-eun had to take care of his daughter as no sitter came in to help her.
Ok Chul received a new message from Michael that they needed to stop the meeting as NIS was tailing them. He went directly to HITECH to avoid being interrogated by the agents.
Mi Soon was assigned to watch over OK Chul, and the only way was to go through the infiltration again. She needed to get a copy of Ok Chul's phone system to trace Michael's number. Mi Soon got the job done and sent the system to the team for scanning.
Ye-eun ran the data and made a call to Michael. The phone rang on the other end, but there was no answer.
