The Crimson Blade
S6:E13
1987
IMDb
Mr. Dyrenforth is due for appendicitis and the board elects Ms. Fleming to fill in for him. Ms. Fleming enforces a doctrine that prohibits singing and dancing in the hallways. Miltie, in an effort to finally do a good deed, dresses up as the Crimson Blade and anonymously performs various acts of heroism.