While the main concern of the film is the establishment of the OHS, which following Congress' approval would become the Department of Homeland Security (DHS), there are a number of subplots, out of chronological sequence, involved in the film. Such subplots include the invasion of Afghanistan, use of precision-guided air strikes with weapons such as GPS-guided JDAMs, the Customs agent on the Canadian border stopping the vehicle carrying explosives for the attempted Millennium bombing, the pursuit of Osama bin Laden and the destruction of Al'Qaeda training camps in the Middle East, as well as in the beginning of the film.
The film's central theme is the creation of the OHS, which after Congressional approval would become the Department of Homeland Security (DHS). The movie incorporates several subplots that are not in chronological order. These include: the invasion of Afghanistan, the use of precision-guided air strikes with weapons like GPS-guided JDAMs, a Customs agent stopping explosives at the Canadian border to prevent the Millennium bombing, the pursuit of Osama bin Laden and the destruction of Al Qaeda training camps in the Middle East, as well as early events in the film.