Celebrating Independence Day in America. Dave Stotts starts on the Freedom Trail in Boston, where he investigates the roots of the Revolutionary Era at places like King's Chapel, Faneuil Hall, the Old South Meeting House, and the Old North Church. He then travels to Lexington and Concord to explore the start of the Revolutionary War and the "shot heard round the world." He ends in historic Philadelphia, where the Declaration of Independence was signed in 1776.