Theory tells us that the greater the power, the greater the responsibility; common sense tells us that the more things, the more troubles; experience tells us that there is always an inside story behind political problems, and there is a dark side behind the inside story... Our old acquaintance, Jim Hacker, Minister of the Department of Civil Service (DAA), succeeded in taking office! With the assistance of Sir Humphrey Appleby, the embodiment of the civil service system, Cabinet Secretary, and Bernard Woolley, the master of tightrope walking and private secretary, after three years of hard training (dilution and training), Hacker finally entered 10 Downing Street and became the Prime Minister of the United Kingdom! The light and the dark meet each other, and new and old problems arise one after another. The Prime Minister's political career is destined to be as exciting as that of the Minister. So, let us unite closely around these three old friends and step into the ever-changing stage of Whitehall~