The Time Warp Trio's plan to spend a quiet day at home is thwarted when the "Graphic Sonic" catapults them back to 1877 Brooklyn. The Brooklyn Bridge is only half finished; the Statue of Liberty is nowhere in sight; and the streets are crowded with fuel-efficient horses. Exploring their new (old) haunts, Joe, Sam, and Fred encounter a "zapped" version of Thomas Edison. It doesn't take them long to realize that unless they hurry back to the future, the lightbulb and the phonograph may never be invented! A very clever installment.