Shin Keroro Gunsou Movie: Fukkatsushite Sokkou Chikyuu Metsubou no Kiki de Arimasu!

The Keroro Platoon spends their time in a relaxed manner, seemingly uninterested in invasion efforts. A series of strange occurrences then begin to appear nationwide, prompting the platoon to feel a growing sense of urgency and take their role as invaders seriously. They come across mysterious symbols repeatedly, raising questions about their significance. This event marks the start of the biggest battle in the history of the series during the Reiwa era.