Buffy The Vampire Slayer S03E11

Gingerbread

After two children are mysteriously killed, apparently as part of a cult sacrifice, Joyce (Kristine Sutherland) leads the town in a witch hunt - but all is not quite as it seems. Buffy, Willow, and Amy Madison (Elizabeth Anne Allen) are tied to stakes and Giles and Cordelia must rescue them, while Amy turns herself into a rat to escape the angry mob.