"Eiga Precure All Stars F" brings together the entire roster of Pretty Cure heroines from across the franchise's history in a grand crossover event. The narrative centers on the appearance of a mysterious girl named Elle, who emerges from a glowing cocoon in the sky. Elle possesses a unique power tied to the "Rainbow Pretty Cure Jewel," a legendary artifact capable of granting immense wishes. However, the jewel is fragmented, and its pieces are scattered across the world. The Precure teams must unite to recover these fragments before they fall into the wrong hands.

The story unfolds as the Precure heroines from various generations encounter Elle and learn of her connection to the jewel. As they embark on their quest, they face a new antagonist, a shadowy figure named Shalala, who seeks to harness the jewel's power for destructive purposes. Shalala commands a group of minions and monsters, creating obstacles for the Precure teams as they travel to different locations to retrieve the fragments. The journey tests their teamwork, resolve, and individual strengths, highlighting the bonds between the heroines.

Throughout the film, the Precure teams engage in dynamic battles, combining their unique abilities to overcome increasingly formidable foes. The narrative emphasizes unity and collaboration, as the heroines from different eras work together to protect Elle and prevent the jewel from being misused. The climax features a large-scale confrontation where all the Precure heroines unite in a spectacular display of their combined powers, culminating in a resolution that reaffirms the themes of hope, friendship, and the enduring legacy of the Precure franchise. The film serves as a celebration of the series' history, bringing together its diverse cast of characters in a cohesive and action-packed adventure.