A bunch of kids witness an alien spacecraft landing, and are then
threatened by the aliens (who eventually turn out to be from Neptune), but
they are saved by a superhero (Sonny Chiba) driving around in a flying
sportscar called Iron Sharp. However, when they tell the grown-ups, among
them Japan's leading scientists, nobody wants to believe them. Then it
seems that the Russians are blowing up Japanese and American nuclear
powerplants, and soon enough, the earth is on the brink of World War III,
only our kids know it was the aliens who are behind all this ... and they
eventually make their scientist friend and idol Tachibana search the alien
landing site ... and wouldn't you know it, he finds material from Neptune.
Now the kids are proved right ...
From now on, the aliens make various attempts to conquer the earth,
like changing the climate, laying large parts of Tokyo to waste, trying to
destroy Tokyo's force field (yup, Tokyo has a force field in this one) and
the like, but each and every of their plans is thwarted by those pesky
kids, who are always saved by Iron Sharp when their lives are in immediate
danger. In the end, Iron Sharp in his flying sportscar fights a few UFOs,
while the Japanese military, under Tachibana's guidance, prepares its
mighty cannons to shoot down the mothership ... and boom, Japan, and
possibly the world, is saved.
A film featuring Sonny Chiba in a silly superhero outfit flying around
in am equally silly sportscar can't be all bad ... and really, some of the
special effects and scenes of destruction are quite well done ... but then
there's those smart-aleck kids who all the time seem to be ahead of the
game, which stretches credibility of the film beyond breaking point (not
that aliens from Neptune and spuerheroes in flying sport cars are all that
credible) - and which pretty much ruins the film.
Spawned by a Japanese tv-series.