A chance spark sets off a huge explosion in the heart of Philadelphia.
Philadelphia, United States of America (USA).
GV. Firemen working on top of debris with flares. CV. Hoses playing on wreckage. LV. Gutted building with firemen playing hoses on wreckage in foreground. SV. Hoses and firemen with the same wreckage. CV. Tangle of wreckage of hoses playing. TV. Showing firemen pouring water into wreckage. LV. Showing thousands of hoses piled along the main street.