Where Did He Come From?

Someone new appears and has an unknown home. He seems to be a normal man, but when he gives intel about himself, everyone starts to look at him as a god. Where did he come from? He's no Olympian, that's for sure.
It's only a few weeks later where there seems to be a fight between the gods and goddesses. But the newcomer knows it isn't the Greek gods and goddesses arguing with each other. His own rulers of his heavens are battling the Greeks' deities. The question is .... why?

Side notes! This is basically a crossover of Transformers as humans and Greek mythology. Taking place in ancient Greece. Cover may be change. I made this during when I was reading the Odyssey