When Colonel K disappears on a free holiday, Danger Mouse pulls rank and assumes the mantle of caretaker Colonel. However, the role is much less exciting than he anticipated, as world-saving missions make way for endless paperwork. Meanwhile, K's freebie spa retreat happens to be a diversion tactic in Greenback's latest plot to take over the world, with the Baron banking on the Danger Agency falling apart without its figurehead and the world descending into disarray.