An astronaut, thought to be dead, comes back to Earth from the deadly Planet Atlanta. However, he is secretly an Alien Atlanta. Leo knows he must defeat it but the alien's lover would be devastated. Can he do it?

Kaoru Umeda is kidnapped by Specter under the disguise of her mum. When Gen tries to save Kaoru, she sends Alien Mazaras to Earth. He must defeat them both!