Part 1: The NIS begins to take away the team’s equipment and access to the network. Without the support of the NIS, the team decides to find a way into Director Myeong’s office to find the secret ledger. Meanwhile, Chan Mi follows Seok Ho on an inspection tour of a construction site where she runs into an unexpected obstacle. Part 2: Seok Ho’s suspicion that his new secretary is actually the same person as his old tutor continues to grow as they spend more time together alone. However, Seok Ho’s ex-wife pays another visit and lets Chan Mi know that she has figured out Chan Mi’s real identity. Meanwhile, the team begins the operation to break into Director Myeong’s office.