Professor of Chemistry and now Ecology Minister Pak Mu-jin has neither ambitions, nor beliefs, nor political views. One day, in a terrorist attack, the president dies along with almost the entire cabinet of ministers, and Pak turns out to be the highest-ranking government official, and now he must become the acting president. Pak does not want to hold this position, but is forced to. During those 60 days, as the law states he will be head of state, the new president will try to uncover the murder of the former government.