Three computer-savvy kids, Naoto, Yuka and Ippei created their own videogame superhero, but then discover it possessed by an inter-dimensional police officer, Gridman. Pursuing an evil program called Kahn Digifer, he merges with Naoto and fights Kahn Digifer's digitized monsters in order to prevent the computerized demon from wreaking havoc on the Human World....
Set in Sapporo during the oil crisis of the early '70s, the film centers on the Hokkaitei soba stand run by a stoic patriarch and his perky wife. One New Year's day, a haggard-looking mother and her two adorable moppets poke their heads into the restaurant and ask for a single bowl of kakesoba. Noticing that the trio is looking a little low in the heels, she puts in an extra scoop of noodles. The youngest boy declares that the soba is delicious. The next year, the same threesome appears again as...