Helen moves with her 15-year-old fraternal twins, Jared and Simon, and their older daughter, Mallory, to the Spiderwick Estate in Henson, Michigan. Upon arrival, Jared uncovers a boggart and learns that magical creatures exist. Only his great-aunt Lucinda believes him, urging Jared to find pages from her father's field guide of magical creatures to protect them against the Ogre, Mulgarath.
The next episode follows Helen Grace and her children as they relocate to the...