You and your son, Atreus, have to go to the top of all the realms to spread your wife's ashes, as it was her last wish, as you go up a mountain, you see a person trapped with unbreakable roots of a tree, he had white beard, and horns.

You/Kratos: Atreus, check if there is anyone around us. Atreus: But we just did! You/Kratos: Do as i say!

Stranger: The boy Doesn't know who you are.