Godzilla x Kong: New Empire. This is the third movie in the Monsterverse series.

  This movie is the third movie in the Monsterverse.

Monsterverse series.  The movie only briefly explains what the Hollow Earth is and jumps right into the action. The Hollow Earth is an extra layer of Earth where prehistoric creatures and mythological animals, like dragons, still exist.  The Titans are prehistoric animals that form the basis of many legends. Kong is a Titan that resembles a giant ape. 

In this universe, the Monarch, a branch of government, was established in the 1970s to monitor the creatures that live in the Hollow Earth and, if necessary, defend humanity from them.  The Monarch monitors Kong as he travels across the Hollow Earth, searching for more of his kind.   

Godzilla, a giant lizard (also a Titan), meanwhile, is searching for a new place to call home.  Godzilla periodically fights other titans for dominance. Along the path, Kong is led to a tribe of giant apes ruled by a Titan called Scar King, an ancient giant ape feared for his brutality. In his first encounter with Scar King, he is defeated and retreats.   

Kong gets assistance from the monarch for a hand injury  with a

•prototype gauntlet.  Kong goes to the surface to seek help from Godzilla but reaches him.  In the end, Kong and Godzilla defeat the giant ape, and Kong becomes the leader of the Giant Ape tribe, earning the title of King Kong.  I recommend this movie to monster and Godzilla fans. Go back and watch Godzilla: King of the Monsters first, or check out my blog post on the movie.