When Keroro is left home alone, Fuyuki's innocent Children's Day decorations become weapons for the sergeant. When Fuyuki finds out, not even Natsumi can stop his outraged rampage! During the monsoon season, Keroro has to use a power limiter or else he loses all control. When they try to remove the limiter, the frog goes haywire! And when the Platoon is about to be sent back to Keron for taking too long to conquer Pokopen, Kururu has the solution-an Earth replica operation!