In the year 1954, mankind came in conflict with the most powerful creature on Earth, Godzilla. Despite the best efforts of the military, they were unable to defeat Godzilla until they manage to bury the monster in snow, imprison him to ice.
In the 21st century, the Earth Defense Force was formed to fight off against giant monsters and alien invasions as Godzilla has escape from his icy prison and starts batting various monsters like King Ghidorah, Gigan, and Mechagodzilla.
- Dylan Bailey (voiced by) - an American boy and the main human protagonist.
- Arashi Aoba - a Japanese boy and the twin brother of Takara.
- Takara Aoba - a Japanese girl and the twin sister of Arashi.
- Dr. Eike White (voiced by TBA) - a mad scientist who seeks world domination and the main antagonist.
- Godzilla - a giant irradiated dinosaur and the star kaiju from the show.
- Godzilla Junior - the adoptive son of Godzilla.
- Rodan - a giant prehistoric pteranodon exposed to nuclear radiation.
- Anguirus - an irradiated ankylosaurus mutated by the same bomb that created Godzilla.
- Mothra - a giant ancient moth and the guardian of Earth.
- Baragon - a prehistoric subterranean reptile that burrows underground.
- Varan - an ancient reptile that glides through the skies.
- Gorosaurus - a therapod dinosaur related to the allosaurus.
- Titanosaurus - an aquatic dinosaur.
- Kumonga - a giant mutant spider.
- Kamacurus - a giant mutant praying mantis.
- Ebirah - a giant mutated lobster.
- Manda - an ancient sea dragon and the guardian of the Mu Empire.
- King Ghidorah - a three-headed extraterrestial dragon and the archenemy of Godzilla.
- Mechagodzilla - a robot version of Godzilla created by G-Force and defend Japan against giant monsters.
- Gigan - a cybernetic space monster created by a race of cockroach aliens.
- Megalon -
- Spacegodzilla -
- Destoroyah - a prehistoric crustecean monster spawned from a chemical weapon that killed the original Godzilla.
- Megaguirus -
- Meganulon -
- Meganula -
- Hedorah - an alien monster that feeds on pollution.
- Orga -
- MUTO - two ancient parasitic monsters that feed on radiation and are among Godzilla's most deadly foes.
- Frankenstein - a mutated human spawned from the heart of Frankenstein's monster.
- Sanda -
- Gaira -
- Gezora -
- Ganimes -
- Kamoebas -
- Dogora -
The shows animation is the same as Transformers: Prime.