Always a good sport, Jim McGill, the first private-eye to live in the White House, agrees to accompany his wife, the president, to London to be her escort at a dinner given by the queen in Buckingham Palace. Problem is, while the president attends a G8 meeting, he'll have a week in England with nothing to do. Then a client--the daughter of a former Chicago cop--comes to McGill. Her father went to Paris to scatter the ashes of his late, French-born wife in the Seine, but found himself in a brawl and is in prison for killing France's national sports hero. The guy from Chicago claims he was only saving a blonde woman from being beaten by the Frenchman, as French law actually required him to do, but the blonde has disappeared. The client asks McGill to find the woman and save her father. McGill decides that a trip to Paris beats glad-handing the locals in nearby London. He just has to wrap up the case in time to get to dinner with the president and the queen.