Seo Munju, a highly accomplished diplomat and former ambassador to the United Nations, and Sanho, an international special agent shrouded in a veil of secrets, race to uncover the truth behind an attack that threatens the future stability of the Korean peninsula.

• Gianna Jun
• Gang Dong-won
• Lee Mi-sook
• Park Hae-joon
• Oh Jung-se
• Lee Sang-hee
• Joo Jong-hyuk
• Park In-hwan