Joe's uncle gives him a mysterious book for his birthday, but when his friend Fred wishes for buried treasure while looking through the book, Joe, Sam and Fred suddenly find themselves transported back through time to the year 1718 on a pirate ship captained by the infamous Blackbeard.
The boys are accidentally transported to the year 2105 when the boys are on a class trip to the Natural History Museum to learn about the inventions of the past. While there, they meet their great-granddaughters and get attacked by robots with ray guns.
The boys are warped back to Outer Mongolia, 1170 A.D. It is the time of Genghis Khan who is the future leader of Mongolia. He is 9 years old and it's also the time when Mongols and the Tartars are at war with each other.
The boys are warped to ancient Egypt in 1500 B.C. When they get there, they get accused of stealing a Pharaoh's treasure and are framed by a priest. Now they'll get mummified. How will the boys get out of this situation?
Freddi, Jodie and Samantha are sent back to 1805 while camping. They join Lewis and Clark without any real food to eat in a wilderness that is barren.
The boys in this episode are transported to North America during 1000 A.D. It is before Christopher Columbus discovered America. They meet Viking explorers who are led by Leif Erikson.
The boys go back in time to 1877 when the Brooklyn Bridge is being constructed. They discover that they are trapped on top of the bridge.
The boys go back through time to the American West in 1868. They find that life with a cattle drive is not as good as in the cowboy movies they've seen.
Joe and Fred warp back through time to Paris, France in 1815. There, they get to meet Napoleon, an emperor, and Sophie Blanchard, a hot-air pioneer.
Fred and Sam, playing around with the ancient artifacts in Joe's father's office, accidentally transport themselves into the middle of a tribal battle in the African country of Angola in 1624 A.D., where they become slaves of Queen Jinga (who prefers to be known as King Jinga) and have a chance to explore the famous Kwanza River and witness a historic meeting with the Portuguese colonial governor.
Jodie and Freddi take Joe back to 1503 Italy to rescue famous Renaissance artist and inventor Leonardo Da Vinci from a showdown with Mad Jack, if they can escape the clutches of the ruling Borgia family and their infamous adviser, Machiavelli.