Jacksepticeye vs Pewdiepie

Jacksepticeye and Pewdiepie is arguing about which channel is the best.
But then they go through a lot of tests to see who is best.
But in the battle something happens. Now Pewdiepie and Jacksepticeye Needs to battle this thing that comes, and that i am not gonna say what is because that would be a spoiler. Will they save earth from the thing. And who is the best youtuber.