'Okong(King of Monkey)' went to a battle after himself got unsealed, when the existence outside from Earth who calls self as 'Agents of God' attacks earth.
Repeated battles made 'Okong' to be stronger and amalgamate with his robot called 'Jaecheon-daesung (King of sky)'.
Because of the amalgamation with 'Robot-King of sky', Okong's Power disappeared when he got sealed has came back to him.
But the 'Robot-King of sky' starts to encroach Okong's mind to become a King of destruction.
Can Okong win this fierce battle and guard his mind and then save this world?