Phoebe and Max use one of his devices to make Hank and Barb act like teenagers. Meanwhile, Billy and Nora pretend to be Blobbin's kids so he can get a dog.
Max and Phoebe start a fight between Billy and Nora so they can avoid riding a scary roller coaster, but their scheme backfires when the feud escalates.
Max and Phoebe realize they have been neglecting their younger siblings when Billy and Nora bond with an outgoing pair of teens at a gamer's convention.