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Yoji, Kei, Kelly, and the little bear-shaped robot Oscar are small heroes who must save the town. Today is Yoji’s birthday, but this doesn’t seem to excite him. Whether or not they know this, Kei, Kelly, and the woman who raised him as her own, Anna, seem to be planning something. And that’s when it appears over the city – an out-of-control sightseeing airship! Our little heroes must face their biggest challenge yet! The action-packed drama even includes an evolved Fastening Machine! Will our heroes be able to fasten the town’s future? What will become of Yoji’s birthday? There’s only one way to find out!
In the previous story, Yoji and Kei rescued Anna, their adoptive mother. Now, they're once again using the Fastening Machine now with Oscar, the bear robot, to solve any problems the town is facing. One day, however, a mysterious hero makes her appearance. And she happens to have the same Fastening Machine as Yoji and Kei. Who is this she? Why did se appear? Just then, a big problem hits this peacefultown! Will these small heroes be able to save the town from the crisis?
The premise of the story: "Snatch the rebel elements' secret data using the Surface! There is a leak saying that the giant coporation Ishimiya Industry will commit an act of international terrorism, and Motoko Kusanagi and the Armored Riot Police head out to seize the plug data!"