Five flashy Roidmudes seem to be causing a “thick air” event, and when Shinnosuke goes to investigate, it turns out the problem was being caused by a Youkai. After arresting the red one, Shinnosuke starts interrogating him. He claims to be a ninja fighting Youkai and that he’ll show Shinnosuke. While this uneven pair squabble, Kyuemon Izayoi and the Roidmudes are putting a terrible plan in progress.
This is a Japanese superhero crossover film between Kamen Rider Drive and the rest of the franchise (mainly Kamen Rider Black, Black RX, 555, Blade and Den-O). Due to the film being the third official installment of the Super Hero Taisen Series, it features a special appearance from the protagonists of Shuriken Sentai Ninninger after their crossover with Drive in Shuriken Sentai Ninninger Vs. Kamen Rider Drive Spring Vacation One-Hour Combining Special. In the film, Shinnosuke Tomari must fight a powerful Kamen Rider and restore the timeline after the past has been altered by Shocker.
After arguing about whose fashion sense is better, Takaharu and Kinji go outside with their costumes to be judged by the public. Unexpectedly, they are laughed at due to their outrageous costumes. They then notice a dark aura surrounding several stones, which Kinji depicts as Hyakki Yakou, an event in summer where a hundred Youkai would revive and destroy the town at night.
For their summer break homework, the Ninningers are sent to a hidden village only ninjas can enter. The castle inside the village is threatened by Kibaoni Army Corps' Samurai Lord, Juza Yumihari. His mission is to locate the "Evil Dragon" said to be found in the village's castle. That being said, the lord of the castle was turned into a dinosaur due to a curse. Could this mean that the lord is this "Evil Dragon" Juza is looking for?
The Ninningers come across a new enemy, Dark Doctor Mavro, an ex-remnant of the Evil Army Shadow Line, who created his own, evil version of AkaNinger called "Dark AkaNinger", serving under him by stealing the real AkaNinger's nintality, and because of it, Takaharu's life is now in danger. All hope seems lost until the Ninningers meet the ToQgers, who fought and defeated the Shadow Line in the past, and it's up to them to join forces in order to overcome this new crisis.
The Ninningers reunite on the second anniversary of Gengetsu Kibaoni's defeat only to discover that Fuuka and Kasumi have united as a popular ninja girl idol group, The Ninnin Girls! A contest is soon organized for a worldwide TV special pitting the Ninnin Girls vs "The Ninnin Boys!" But will the Kibaoni clan's revival allow either group to truly win?
Final Live Tour