Danger Mouse Season 4 Episode 9 Public Enemy No. 1 Episode Title:Public Enemy No. 1.Episode Description:Danger Mouse and Penfold are pursuing Baron Greenback when Danger Mouse hits his head and suffers amnesia. Greenback and Stiletto convince Danger Mouse that he is actually a Robin Hood-type vigilante known as the White Shadow and Danger Mouse takes up a life of crime. Penfold tries to catch White Shadow using a pill that allows him to move at extraordinary speed, but it wears out. Since White Shadow has beaten Greenback to doing all the major crimes, Greenback and Stiletto also try to stop White Shadow, but fail. Penfold tries to whack White Shadow in the head with a mallet to break the latter's amnesia.