Early Monday morning Marvel released the first trailer for their upcoming Thor: Ragnarok. Take a look.
Or, if you can't watch videos at work here's CBR's summary of the trailer:
The phrase "Asgard in ashes" is repeated over and over again as we see Thor in chains, the film's primary villain Hela stop Mjolnir mid-flight and then shattered to pieces, Valkyrie working for the Grandmaster, Loki joining a fight, and finally, the gladiator pit where Thor is put up against his "co-worker," Hulk.
Starring Chris Hemsworth, Cate Blanchett, Tom Hiddleston, Idris Elba, Jeff Goldblum, Tessa Thompson, Mark Ruffalo, and directed by Taika Waititi Thor: Ragnarok will be released on November 3, 2017.