Asian Drama

The South Korean President travels to a villa to enjoy his vacation. After three gunshots are fired, he disappears. His bodyguard Han Tae-Kyung (Park Yoo-Chun) then attempts to find the President.

Han Tae-Kyung (Park Yoo-Chun) works as a presidential guard. He goes to the hospital to see his father who is a high ranking government official. His father got into a car accident last night and is now in critical condition. Han Tae-Kyung only watches his father through a window for a short time before going back to work.

Meanwhile, President Lee Dong-Whi (Son Hyun-Joo) is in his third year of service as the South Korean President. He received huge support during his first year, but his approval rating has declined ever since. A special prosecutor is now investigating President Lee Dong-Whi's finances prior to becoming the President. To cheer himself up, the President decides to make a visit to a traditional market.

During the President's visit to the traditional market, Han Tae-Kyung's phone keeps ringing. He feels that something might be wrong with his father. Then, a man throws white powder on the President and the bodyguards respond accordingly. After the incident, Han Tae-Kyung receives a text message that his father has passed away. Meanwhile, Han Tae-Kyung is reprimanded because the President was hit with the powder. He leaves his badge and gun behind and goes to his father's funeral.

At the funeral, a woman talks to Han Tae-Kyung. She asks him if he has seen a white envelope among the things his father left behind. She also tells him that her father's car accident might have been premeditated murder. She gives him her name card. Her name is Yoon Bo-Won (Park Ha-Sun) and she is a police officer.

Soon, Han Tae-Kyung hears from a dying man that "The President will die on March 5th". As Han Tae-Kyung attempts to enter the vacation villa where the President is staying, he is blocked by soldiers because Han Tae-Kyung doesn't have his badge. Three gun shots are then fired inside the President's villa.

After being left for dead and witnessing the death of his father, Han Yi Soo / Yoshimura Junichiro returns to Korea from Japan after changing his looks and identity to take revenge on the people who caused his family’s downfall. While using Jo Hae Woo, the granddaughter of the main mastermind who was his first love when they were young, he finds himself falling in love with her again. Meanwhile, Oh Joon Young is the man that Hae Woo got married to while thinking that Yi Soo had died becomes suspicious of his real identity and motives. Will Han Yi Soo be able to avenge the death of his father and expose the dirty secrets of his enemies.

Kim Hyun Joon and Jin Sa Woo are best friends who were brought into a top secret organization known as NSS by analyst Choi Seung Hee and Park Sang Hyun. Hyun Joon and Sa Woo both fall in love with Seung Hee when she first profiles them. Their lives are changed forever when Hyun Joon is given a solo mission in Hungary. Hyun Joon later tries to find out who set him up and to figure out what IRIS is and wants.