Brian travels to Boston to bust the myth of Paul Revere's Midnight Ride. Also: He does some digging on the trial and execution of Italian anarchists Nicola Sacco and Bartolomeo Vanzetti, who were charged for the killing of two men in the 1920s.
Brian visits Galveston, Texas, to learn about a deadly hurricane that struck the city in 1900; and he searches for the Fountain of Youth in St. Augustine, Fla., while experiencing what life was like there in the 1500s.
A trip to Baltimore to learn more about a famous battle during the War of 1812 is followed by a visit to the birthplace of the American National Anthem. And later, Brian explores hotels in Los Angeles that played a significant role in the history of Hollywood and rock and roll.
Brian leads a group along the route used to secretly remove the Liberty Bell from Philadelphia in 1777; and they explore the unnatural manmade wonders of the Grand Canyon, which were designed by a woman.
Brian travels back to 1884 to explore how a swamp turned into the National Mall in Washington, D.C.; and later, he leads locals through Hollywood in search of the hidden filming locations and studios of Charlie Chaplin.
Brian travels back to the Wild West of Tombstone, Ariz., to see where the infamous gunfight at the O.K. Corral really took place; and hits the streets of 1940s Las Vegas in search of "divorce ranches," during which he learns how celebrities like Marilyn Monroe got unhitched.
CGI graphics are used to visually travel back in time and tell stories from yesteryear in this series, which begins with host Brian Unger revisiting the Great Depression in San Francisco and learning about the construction of the Golden Gate Bridge. Also: the dawning of skyscrapers in New York City.