The Celestials return to Earth
So Galactus is hungry again and decides to try and consume Earth...again. But Squirrel Girl arrives and, after a lengthy fight that wasted countless galaxies (not the Milky Way), finally defeats the Devourer of Worlds and has him at death point. In the end though she decides to spare Galactus on the terms that he owed the Earth a debt. Galactus agrees.
So then just a little while later the fifth Celestial host arrives early, with THE SAME celestials as the fourth host, declaring that Earth must be destroyed.
Galactus JUST FINISHED EATING AN EARTH SIZED PLANET when he hears of this and decides to pay off his debt by rushing to the aid of the Earthlings. He brings all of his heralds with him and Tyrant, who he re-powers.
Utah also hears of this and decides to illegally interfere...again, and rushes to the aid of the Earthings.
Ego also hears of this, and, having had a fued with Exitar just a few days earlier, decides to join in on Earth's side.
Squirrel Girl is not in this.
Can the entire Earth (remember that this also includes Earth's heroes, however big of a help they might be...), including the skyfathers, and their outside allies repel the celestials? Note that, for purposes of this fight, the Earth is somehow indestructible unless if the defenders are defeated.