Budding inventor Eliza Boom is about to try her 92nd experiment. Her previous 91 have all ended in explosions. Her father, who is an inventor of spy equipment, has told her not be frustrated by failure. She writes everything down in her diary that she has named Edison (after Thomas Alva, of course). She recounts not only her wish to succeed, she shares how she is treated by the meanest girl in school. With the help of her trusted dog Einstein and a new friend, she defuses some hairy situations.