As the title suggests, the movie is split into three separate stories:
- Little monsters invade Haruka's mirror and mess with her.
- The Princess Cures travel to a Magical Land called the Pumpkin Kingdom, where they have to rescue Princess Pumpluplu.
- The Cures travel to the Night Kingdom to bring light back to the Pumpkin Kingdom.
In the line of Pretty Cure movies, it is preceded by Happiness Charge Pretty Cure Ballerina Of The Doll Kingdom and followed by Mahou Tsukai Pretty Cure The Movie Miraculous Transformation Cure Mofurun.
Tropes:
- Art Shift: The movies shifts from 2D to 3D in the third segment.
- Audience Participation: As tradition, the audience seeing the film in theatres are given Miracle Lights, and the mascots encourage the guests to use them to help the Cures.
- Breaking the Fourth Wall: Pafu and Aroma often appear to inform the audience of things, such as the movie's three-segment nature and when to use the Miracle Lights.
- Color Failure: When Cure Flora becomes shock, she goes completely white.
- Halloween Episode: Downplayed; due to the late-October release date, pumpkins are a major theme of the movie.
- Living Toys: Refi, the doll that Haruka received from the Pumpkin Kingdom, comes to life in the third segment and brings Cure Flora on a mission.
- The Snack Is More Interesting: Even though she feels something off, Haruka is too busy eating her pumpkin parfait to do anything about it.
- Theme Naming: The three Pumpkin Fairies are named Pum, Puu, and Kin ("pumpkin").
