Set during the IMF crisis in 1997. Only one week left until South Korea will go under sovereign default. Han Shi-Hyun (Kim Hye-Soo) is a leader of the monetary policy team at the Bank of Korea. She was the first to predict the possible sovereign default. Han Shi-Hyun is then assigned to a crisis team. Yoon Jung-Hak (Yoo Ah-In) works in the finance field. He bets everything under the real possibility of a sovereign default. Gab-Soo (Heo Jun-Ho) struggles to protect his company and family during the crisis.