Demons Aren't Dull?!.Danger Mouse and Penfold must face the demon of the fourth dimension. Danger Mouse is transported onto a This Was Your Life television show, where they highlight several clips from previous episodes that show him in embarrassing and incompetent situations. Danger Mouse is distressed and wants to resign, but Colonel K. assures him that the show never transmitted. When the demon transports the famous buildings to his own dimension using a time corridor, Danger Mouse and Penfold head back to the fourth dimension and deal with the surreal weirdness there. They eventually trick the demon into entering between two gateway doors, and have him shipped to Alpha Centauri.