During a sleepover, Joe and Sam come face to face with Frankenstein's monster. They take him back to the nineteenth century to drop him off with his creator, Mary Shelley, but their helpfulness may end up changing the history of horror fiction completely.

Joe, Fred, and Sam travel back in time to ancient China and help defeat the awful ruler Wang.

In their latest time travel adventure, Fred, Joe, and Sam da Brooklyn meet Leonardo da Vinci and try to avoid becoming toilet scrubbers in a sixteenth-century Italian army.

While on a field trip to New York's Museum of Natural History, Joe, Sam, and Fred travel one hundred years into the future, where they encounter robots, anti-gravity disks, and their own grandchildren.

Sam, Joe, and Fred finish their school project on ancient Egypt without using their magical time travel book, but when Joe's sister Anna plays with it and travels to the land of pyramids, they must follow her back in time to bring her back to 1996.

Joe, Fred, and Sam are transported to seventeenth century Japan where they infuriate a Samurai warrior, encounter their great-grandaughters, and save their lives by reciting an ancient form of poetry.

Once again, three friends are sent back in time by a magic book and they find themselves prisoners of the evil pirate Blackbeard.

At the beginning of summer vacation Joe, Sam, and Fred find themselves trapped inside their summer reading list, involved in a battle between good and evil characters from well-known children's books.

Joe receives a magic book for his birthday present from his uncle. Joe, Fred, and Sam are transported to a time when evil knights, fire-breathing dragons, and vile-smelling giants roamed the land.

Thanks to their magical book, Fred, Sam, and Joe inadvertently travel through time to 1877 New York City, where they and their granddaughters, who have also come from the future, help them find a way back to their own time.