Since Chul Young doesn't know anything about IRIS or the location of the bomb, he's let go.
Chief Park is charged with treason and is arrested within NSS.
Seung Hee closes in on the terrorist hideout but is detained by Sa Woo before she can go in. She's later able to get away though and resumes her search.
Hyun Jun and Sun Hwa return to the hideout only to find everyone gone. Only a few stayed behind to try and kill them. Hyun Jun and Sa Woo run into each other. They exchange fire but both are able to get away.
Hyun Jun and Sun Hwa discover the location where the bomb was assembled. With Mi Jung's help, Seung Hee is able to find it as well and runs into them there.