Leo discovers the true intentions of "Astra" and must put an end to it.
A beast under the guise of a Flying Saucer travels from a distant planet to attack Earth. MAC doesn't detect it, and gets all but destroyed.
Tooru and some friends try to attract a flying saucer. Unwittingly, they draw the attention of Black Dome, which had been summoned to earth by Commander Black.
Another saucer, Absorba, has been summoned to earth. Gen suspects it is taking advantage of a boy's kind feelings towards animals.
