Resume: After the events of Avengers: Age of Ultron (2015), Thor (Chris Hemsworth), held captive on the planet Sakaar without his hammer, must win a gladiatorial duel against an old friend, The Incredible Hulk (Mark Ruffalo), in order to return to Asgard in time to stop the villainous Hela (Cate Blanchett) and the impending Ragnarök, the doom of the Asgardian civilization