Chaewoon becomes Jayu's bodyguard. They attempt to fix the hacking but realize governmental power is needed. Jayu asks Seonu Jae, the prime minister, for help. A BF chief researcher gets in a car accident. Jayu suspects these incidents are related, and Chaewoon finds something suspicious about the hacking.
Casts:
Ju Ji-hoon, Han Hyo-joo, Lee Hee-jun, Lee Moo-saeng, Jun Suk-ho, Park Ji-yeon, Kim Sang-ho, Yi Seo