The plot of the films and books centers around the Gates family – treasure hunters who search for and preserve lost valuables from the history of the United States of America - while the TV series references this background and features some common characters. Future installments, notably a third film, have been under consideration for many years. The National Treasure franchise consists of American historical fiction action-adventures, including two released theatrical films, a prequel book series, and a television series set 20 years after the films. Westward Bound - A Gates Family Mystery.
Changing Tides - A Gates Family Mystery.
