Gorr the God Butcher is a galactic killer played by Christian Bale who seeks to wipe out all gods. He wields the god-killing Necrosword and targets Thor after losing faith in deities when his daughter dies.

Jane Foster becomes the Mighty Thor because she is deemed worthy to wield Mjolnir, Thor's hammer, which bonds to her due to an enchantment Thor unknowingly placed on it years earlier. This also allows her to transform into a powerful warrior while secretly battling cancer.

Thor is on a quest for inner peace when his retirement is interrupted by Gorr the God Butcher, who wants to destroy all gods. Thor teams up with Valkyrie, Korg, and Jane Foster (now the Mighty Thor) to stop Gorr, save kidnapped Asgardian children, and confront him in the Shadow Realm.

Yes, Thor travels to Omnipotence City, home of the gods of Olympus ruled by Zeus (played by Russell Crowe). Thor fights Zeus and takes his thunderbolt to use against Gorr, while Valkyrie steals Zeus's weapon during their escape.

Jane sacrifices herself in the final battle, using Mjolnir to destroy the Necrosword and save Thor. Her prolonged use of the hammer accelerates her terminal illness, and she dies in Thor's arms. She is later shown arriving at the gates of Valhalla, welcomed by Heimdall.

Love is Gorr the God Butcher's daughter, the last of their race. After Gorr's death, Thor adopts her and raises her as his own. She becomes his heroic partner, wielding Stormbreaker alongside Thor, who now wields Mjolnir.