After his retirement is interrupted by Gorr the God Butcher, a galactic killer who seeks the extinction of the gods, Thor Odinson enlists the help of King Valkyrie, Korg, and ex-girlfriend Jane Foster, who now wields Mjolnir as the Mighty Thor. Together they embark upon a harrowing cosmic adventure to uncover the mystery of the God Butcher’s vengeance and stop him before it’s too late.
After the devastating events of Avengers: Infinity War, the universe is in ruins due to the efforts of the Mad Titan, Thanos. With the help of remaining allies, the Avengers must assemble once more in order to undo Thanos' actions and restore order to the universe once and for all, no matter what consequences may be in store.
As the Avengers and their allies have continued to protect the world from threats too large for any one hero to handle, a new danger has emerged from the cosmic shadows: Thanos. A despot of intergalactic infamy, his goal is to collect all six Infinity Stones, artifacts of unimaginable power, and use them to inflict his twisted will on all of reality. Everything the Avengers have fought for has led up to this moment - the fate of Earth and existence itself has never been more uncertain.
Thor is on the other side of the universe and finds himself in a race against time to get back to Asgard to stop Ragnarok, the prophecy of destruction to his homeworld and the end of Asgardian civilization, at the hands of an all-powerful new threat, the ruthless Hela.