Eliza's dog, Einstein, falls for their neighbor's dog, but Mrs. McNice does not seem very nice at all, and to prove it Eliza tries to invent the perfect gadget to help her discover the truth.
Eliza Boom is the daughter of a spy gadget inventor who hopes to create a great invention like her father, but first she needs to get a roll of her father's top-secret film back from the class bully Zoe Wakefield.
Summer's father moves their family to Australia after the sudden death of her brother Floyd, and the only thing that keeps her grounded is Floyd's guitar, which was miraculously unharmed in the bombing that killed him.