Young Chul agrees to help Hyun Joon if he'll prove he's trustworthy. He sends Hyun Joon and Sun Hwa along with a team to S. Korea on a mission.
After they arrive, Hyun Joon and Sun Hwa go to the apartment he used to live in with Sa Woo. They access the NSS network thru a computer there in hopes of finding out more info on the file Hyun Joon was given by Hong Seung Ryong. NSS notices the breach and sends a team to the apartment. By the time they arrive, Hyun Joon and Sun Hwa are already gone.
Some within NSS believe Hyun Joon could still be alive and think he's the primary suspect of the break-in.