Jacob is determined to claim the attic for his own when dad Morty says it's his if he can spend the night there. Noah and Emma attempt to frighten Jacob out of the deal with the legend of the Hooded Fang, a popular wrestler. Jacob learns to face his fears when the kids meet the Fang for real.
When dad Morty tells Jacob of the Malty McGuffin, a once-popular breakfast drink, and how a map on the package was supposed to lead to a treasure that was never found, Jacob and friends (and a few enemies) embark on a search.
Jacob is tired of failing sour Pickles daily country capitals quiz, so he does a little detective work and figures out her system for picking which countries to ask.
Jacob gets the chance to assume the role of "bagel fetcher" for dad Morty's special luncheon...to the delight of everyone, including his siblings who don't want the job. Jacob and Beauford face various cliffhangers to get the bagels safely home.
Amidst trials and tribulations at home and school, Jacob stumbles upon the perfect science project for school, until it begins to eat everything at home.