Imprisoned on the other side of the universe, the mighty Thor finds himself in a deadly gladiatorial contest that pits him against the Hulk, his former ally, and fellow Avenger. Thor’s quest for survival leads him in a race against time to prevent the all-powerful Hela from destroying his home world and the Asgardian civilization. Thor is imprisoned on the other side of the universe 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.