In his Grandpa Al's garage workshop, child genius Frank Einstein tries to invent a robot that can learn on its own, and after an accident brings wisecracking Klink and overly expressive Klank to life, they set about helping Frank perfect his Antimatter Motor until his archnemesis, T. Edison, steals the robots for his doomsday plan.

"Frank Einstein (kid-genius, scientist, and inventor) and his best friend, Watson, along with Klink (a self-assembled artificial-intelligence entity) and Klank (a mostly self-assembled and artificial almost intelligence entity), once again find themselves in competition with T. Edison, their classmate and archrival, this time studying the science and mysteries of the universe!"--

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.

Once again, three friends are sent back in time by a magic book and they meet Leonardo da Vinci and try to avoid becoming toilet scrubbers in a sixteenth-century Italian army.

"Frank Einstein (kid-genius scientist and inventor) and his best friend, Watson, along with intelligent robots Klink and Klank once again find themselves in competition with T. Edison, their classmate and archrival--this time in the quest to unlock the power behind the science of energy"--

Boy genius and inventor Frank Einstein and his robot pals Klink (intelligent) and Klank (sort-of intelligent) study the science of ecology and conservation as they try to stop classmate and archrival T. Edison and his loggers from destroying the Midville Forest Preserve.

Alex, whose birthday it is, hijacks a story about Birthday Bunny on his special day and turns it into a battle between a supervillain and his enemies in the forest--who, in the original story, are simply planning a surprise party.

Carbon dioxide is out of control on Earth, and the fate of humankind rests in the paws of four experimental, untested Animal Astronauts (AlphaWolf, SmartHawk, LaserShark, and StinkBug) who are seeking another habitable planet; first destination is the Plant Planet which at first looks perfect, except that the abundant plant life can think for itself--and it thinks that it really does not like the AstroNuts.

After arriving in Pennsylvania during the winter of 1776, time travelers Joe, Fred, and Samantha inspire General George Washington, "the man on the one dollar bill," to carry out a surprise attack on Hessian troops in Trenton, New Jersey, that will change the course of the Revolutionary War.