The Mobile Emergency Room (MER), newly established by the Governor of Tokyo, is a life-saving operation with the goal of preventing even one fatality. As they rush to save patients in an ER car equipped with the latest medical equipment and an operating room, they are called to Yokohama, where an unprecedented emergency has occurred, with 193 people stranded on the 70th floor due to a fire. (Source: Japanese = moviewalker.jp || Translation = MyDramaList)