Thor: God Of Thunder Volume 2: Godbomb - Jason Aaron

Somewhere at the end of the time, all the gods of the universe are enslaved, working to build a machine that will forever change the face of creation. What is the Godbomb? And what can Thor do to stop it? While Gorr's master plan continues to unfold, all hope for divinity is lost when Thor finds himself in chains alongside his fellow gods. And even as Gorr's dark origin is revealed, along with the truth behind his bloody quest to butcher the gods, three time-bending Thors unite to lead an army of slave gods in the fight against Gorr.