![Mark Ruffalo](http://image.tmdb.org/t/p/w92/z3dvKqMNDQWk3QLxzumloQVR0pv.jpg)
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 home-world and the end of Asgardian civilization, at the hands of an all-powerful new threat, the ruthless Hela.