Keroro Gunsou Movie 4: Gekishin Dragon Warriors de Arimasu!

In a world suddenly threatened by enigmatic giant creatures known as the "Dragon Tails," the Keroro Platoon embarks on a global investigation to uncover their origins and potential dangers. However, their mission takes an unexpected turn when Tamama vanishes during their research. Concerned for their missing comrade, the platoon sets off on a frantic search, leading them to the picturesque Mont-Saint-Michel in France.

There, they encounter a mysterious girl named Sion, who possesses the elusive "Dragon Book." As they delve deeper into the unfolding mystery, the platoon uncovers hidden truths about Sion and the looming catastrophe that could spell doom for their world. With humor and camaraderie at the forefront, the adventure unfolds as they race against time to solve the riddle of the Dragon Tails and rescue Tamama.