Rub-a-Dub-Dub! There's a Pervert in the Tub (幻の八宝大華輪を探せ Maboroshi no Happōdaikarin wo Sagase?) is the fourth episode in the third season of Ranma ½, known as "Hard Battle", and is the 44th episode overall. Angered by Ranma's continued upsetting of his perverse schemes, Happosai decides to unlock his sealed technique, the Happo Fire-Burst. It's a race as Ranma, Genma and Soun try to stop the pervert from recovering his legendarily destructive move.