When graffiti reading "Binky Rules" mysteriously appears on the walls of the school, Binky is blamed for it. Buster and Fern act as detectives to prove Binky's innocence, but when Buster starts teasing Fern about her detective style, it makes matters worse. After listening to a song, they find out that the graffiti was caused by a local radio station promoting a new band called "BINKY." BINKY, the band from the previous episode, becomes a huge hit in Elwood City, and a concert is planned to expose a big secret about the band. Arthur is able to go backstage due to his father catering the concert, and worries that if he invites his friends, it will interfere with him befriending the band. He changes his mind and lets them come, thinking that it would be more fun to go with his friends. However, Arthur learns that BINKY is actually a group of holograms and is not real.