Kong: King of the Planet of the Apes
Prologue
It had been four months since Caesar had led the ape colony to their new home in the oasis, and since then much has happened. After Caesar's death another chimpanzee had taken his place as leader, his name was Zeus. Zeus was a close friend of Caesar's and followed many of his ideals; the members of the ape council had decided that Zeus was the best choice for their new leader. Zeus had graciously accepted the position and promised that he would protect the apes and would help watch over Caesar's son Cornelius until he was old enough to take his rightful place as leader. During the months that had passed the apes had let a number of humans join their colony, a little more than a hundred humans now lived with them. Many apes accepted the humans into their colony, however many others remained weary and distrustful toward them.
Zeus harbored slightly more resentment toward humans than Caesar did but he did not hate them as a whole like Koba did, and he did not approve of Koba's actions. Zeus allowed the humans to live with them because he followed Caesar's belief in mercy, but also because there was a relatively small number of them and they consisted mostly of refugees. The humans who lived with the apes consisted mostly of women, children, families, elderly, sick, wounded, and those who had become mute from the virus. Some of the humans who lived with them were doctors, which proved beneficial, but only a small fraction of the humans were actually soldiers. Because of their relatively small population and the fact that very few of them could actually fight, Zeus had decided that the humans were little, if any, threat to the apes.
The humans living with the apes had agreed to follow their laws and most of them were content with this new way of life. Though these humans had mostly lived peacefully with the apes there was still no peace. Surviving members of the US military who opposed Colonel McCullough's practices still considered the apes a threat and also saw the humans living with them as a danger. These soldiers, under the leadership of a powerful general, had managed to track the apes to their new home and had attacked them since then but the apes had managed to fend them off. The general did not approve of McCullough's methods in preventing the virus from spreading, but he rejected the idea of humans living together with apes, he felt they were betraying their own race. He had felt that no matter what they claim the apes would one day overthrow humanity and this would become their world. As he planned to wipeout the ape colony, he one day discovered some classified research that was once property of the fallen US government.
Through this research he learned a terrifying discovery of the existence of an island in the South Pacific where there lived a species of ape unlike anything they had ever seen before. The files he had also contained information about this species and many other creatures that inhabited the island. The general told his loyal colonel about this, but he remained skeptical as he felt this was nothing more than a mere myth. The general was very worried by this discovery as he felt that this was even worse than the ape army. He then decided that after his colonel's next attack on the apes he and his men would return to him and they would plot an expedition to this island. The general told his colonel that they would do whatever it would take to destroy the greatest threat to the human race: the true king of apes.
Author's note: In this crossover between the Monsterverse and the Planet of the Apes movies ignore the obvious continuity errors. Later I will include some of the creatures that were introduced in "Skull Island: Birth of Kong" as well as reference the movies.