Trick or Treat

The film opens with the song "Trick or Treat for Halloween", the lyrics of which tell the film's moral – one must be generous on Halloween or face trouble.

One Halloween night, a witch named Hazel takes great joy in scaring bats on a clock tower and a cat on fence. But then she gets scared by a jack-o'-lantern and hides behind a tree. The jack-o-lantern turns out to be part of Huey, Dewey, and Louie’s costumes as they go trick-or-treating. When the trio goes to their uncle Donald Duck's house, Donald decides to prank the boys (giving them a "trick" instead of a treat). Instead of giving them candy, he puts firecrackers in their bags and then pulls a string that dumps a bucket of water on their heads. After Donald bids farewell to the boys, the discouraged nephews go and sit on the curb.