 An evening boating on the Potomac River on the Fourth of July did not go as planned for two families. After a boat hit an unlit buoy, first responders from Prince George's County, D.C., and Fairfax County came together for a heroic rescue. WTOP's Cheyenne Corrine was on board one of the rescue boats today at the National Harbor. She spoke with Corporal Jeremy Jordan of Prince George's County's Police Marine Unit.