Once Upon A Whine is the 18th episode of Sabrina the Animated Series.
While Sabrina is cleaning, she accidently brings Cinderella into reality. She discovers that Cindy is a whiney, lazy, jerk. When Sabrina tries to send Cindy back she accidentally sends Harvey to fairy tale land! She must return Cinderella back to where she belongs and retrieve Harvey before her family finds out she didn't follow the rules.
The episode's title is a take on the phrase "Once Upon A Time", which are the first words at the beginning of fairy tales.