The past. Hela (Cate Blanchett) attempts to usurp the throne of Asgard and conquer the Nine Realms, but is defeated by the Valkyries and exiled by her father, Odin (Anthony Hopkins). All but one of the Valkyries die in battle.
The present. Thor (Chris Hemsworth) is captured by Surtur while investigating the resurgence of the Infinity Stones, but manages to escape and behead Surtur. He then returns to Asgard to talk to Odin and learns that Heimdall (Idris Elba) is in exile in the Asgardian wilderness and been replaced by the warrior Skurge (Karl Urban) as Asgard's bridgekeeper.
Thor finds out that Loki (Tom Hiddleston) has usurped the throne and that in Odin's absence Hela is regaining her strength. They go to Earth, where Doctor Strange (Benedict Cumberbatch) helps them find Odin, who has been living as a vagrant. Hela ambushes them, destroys Mjolnir, kills Odin and strands Thor and Loki on planet Sakaar. She then forces Skurge to help her invade Asgard and slaughters its army, including Lady Sif (Jaimie Alexander) and the Warriors Three Volstagg (Ray Stevenson), Fandral (Zachary Levi) and Hogun (Tadanobu Asano).
In Sakaar, Thor is captured by the renegade Valkyrie (Tessa Thompson), who abandoned Asgard after her sisters were slaughtered by Hela. She's working as a bounty hunter for The Grandmaster (Jeff Goldblum), who runs the planet's gladiator arena. Thor is captured and befriends another gladiator, Korg (Taika Waititi), who led a failed revolt against the Grandmaster in the past. Thor is later forced to fight the champion of the arena, the Hulk (Mark Ruffalo), who ended up in Sakaar after the battle against Ultron. During the battle, Thor manages to harness lightning. Loki is captured by Valkyrie while trying to rescue Thor.
The present. Thor (Chris Hemsworth) is captured by Surtur while investigating the resurgence of the Infinity Stones, but manages to escape and behead Surtur. He then returns to Asgard to talk to Odin and learns that Heimdall (Idris Elba) is in exile in the Asgardian wilderness and been replaced by the warrior Skurge (Karl Urban) as Asgard's bridgekeeper.
Thor finds out that Loki (Tom Hiddleston) has usurped the throne and that in Odin's absence Hela is regaining her strength. They go to Earth, where Doctor Strange (Benedict Cumberbatch) helps them find Odin, who has been living as a vagrant. Hela ambushes them, destroys Mjolnir, kills Odin and strands Thor and Loki on planet Sakaar. She then forces Skurge to help her invade Asgard and slaughters its army, including Lady Sif (Jaimie Alexander) and the Warriors Three Volstagg (Ray Stevenson), Fandral (Zachary Levi) and Hogun (Tadanobu Asano).
In Sakaar, Thor is captured by the renegade Valkyrie (Tessa Thompson), who abandoned Asgard after her sisters were slaughtered by Hela. She's working as a bounty hunter for The Grandmaster (Jeff Goldblum), who runs the planet's gladiator arena. Thor is captured and befriends another gladiator, Korg (Taika Waititi), who led a failed revolt against the Grandmaster in the past. Thor is later forced to fight the champion of the arena, the Hulk (Mark Ruffalo), who ended up in Sakaar after the battle against Ultron. During the battle, Thor manages to harness lightning. Loki is captured by Valkyrie while trying to rescue Thor.
