If you want a story..go elsewhere. The fun of a movie like this is watching the special effects. They will inspire you to head to a local hobby store and buy some little buildings and other assorted stuff like trees etc. Then when you get home you can duplicate the movie in your basement or backyard. Don’t forget to pick up some tanks and soldiers for the big battles.
The basic plot has aliens wanting some land near Mt.Fuji to hang out in and one other thing…brides.
A village is having a festival when astrophysicist Ryoichi Shiraishi, avoiding his girlfriend because work is his mistress, can’t help but spot a forest fire. The village is destroyed by the fire and, for good measure, a flood. What next? A monster? Right you are! Since Godzilla is too busy making sequels it’s time to call out the army.
Bullets can’t stop him! Flame throwers are a joke! Might as well blow him up. So much for that robot.
As the movie rolls along between gunfire and a few missiles we meet The Mysterians. Shiraishi thought their planet was between Mars and Jupiter and blew up. He called it Mysteroid. Where did he get to? Oh..there he is…on board a saucer with the aliens. Something is going on on the dark side of the Moon. Something is also happening on Earth. A giant dome arises near Mt.Fuji.
Now they make their demands for land and women. After all they are sterile thanks to a nuclear war. More heavy artillery doesn’t do a thing to the dome. The Mysterians now up their demands. Time now for the scientists to bring out the Flying Atomic Heat Projector. The final battle is on!