Thor: Ragnarok - Everything We Know So Far

Marvel released the official plot synopsis for the film earlier this year, and it reads as follows:

“In Marvel Studios’ Thor: Ragnarok, Thor is imprisoned on the other side of the universe without his mighty hammer and finds himself in a race against time to get back to Asgard to stop Ragnarok – the destruction of his homeworld and the end of Asgardian civilization – at the hands of an all-powerful new threat, the ruthless Hela. But first he must survive a deadly gladiatorial contest that pits him against his former ally and fellow Avenger – the Incredible Hulk!”

It's a safe summary and wisely keeps most plot details under wraps, but it did confirm that Thor would indeed be fighting the Hulk (which was long-suspected), and also revealed that the God of Thunder would be missing his hammer.

Cue the phallic-object jokes.