Bart gets in trouble on Grandparents Day at school and is forced to hang out with Skinner's mother as punishment. After spending time with various grandmas in the neighborhood, he learns the benefits of hanging out with the elderly, but eventually recognizes the dangers of taking advantage of them. Meanwhile, Peekimon Get has taken over the town of Springfield.
Mr. Burns tries to relive his glory days and crosses paths with a mysterious music mogul. After being conned by him and reduced to bankruptcy, Mr. Burns seeks revenge on the Music Producer with the help of Homer, Bart, rapper Jazzy James and the mogul's ex-wife, Praline. Also, Lisa is courted by the richest kid in town, Smithers begins a perilous journey and Marge opens an obscure boutique store.
Mr. Burns tries to relive his glory days and crosses paths with a mysterious music mogul. After being conned by him and reduced to bankruptcy, Mr. Burns seeks revenge on the Music Producer with the help of Homer, Bart, rapper Jazzy James and the mogul's ex-wife, Praline. Also, Lisa is courted by the richest kid in town, Smithers begins a perilous journey and Marge opens an obscure boutique store.