This is a sequel miniseries to Godzilla.
Godzilla, Mothra, Rodan, Anguirus, and new members Baragon and Battra are now callled the Earth defenders. Then Jet Jaguar and M.O.G.U.E.R.A. come to the Earth Defenders and ask for help, as Space Godzilla has gathered a force and attacked several cities. They go to a city to find a Reincarnated King Ghidorah, Gigan, Megalon and Destoroyah, a new Mechagodzilla model, and SpaceG. All of them attack the Earth defenders; having a large fight, it ends with SpaceG's force leaving, and deploying Orga.
Godzilla VS Orga: Round 2
Godzilla thells the others he has this one, and Godzilla and Orga fight. Eventually, Godzilla kills Orga. Meanwhile Jet Jaguar, M.O.G.U.E.R.A., Mothra, Battra, and Rodan head into space, towards a Space Station