Quimby insults the French government who launch a neutron bomb in retaliation at Springfield. Homer escapes the blast and begins enjoying himself in seemingly deserted town.
Fly vs. Fly:
The family visits Prof. Frink's yard sale. Homer purchases a matter transporter. Bart uses it in an attempt to become "Superfly", with comic and near disastrous results.
Easy-Bake Coven:
In 1649, Marge is accused of being a witch. It turns out she and her sisters actually are witches who learn that it's easy to scare people into giving them treats.
Junie Harper, a conservative church member, declares that Halloween is a Satanic holiday, and gets the school to shut down Hank's "Haunted House" on the grounds that it violates the separation of church and state. Luanne and even Bobby start to believe Junie when she says that Hank is a Satanist, and Hank has to fight against Junie's attempt to cancel Halloween for the whole town.