In Persia in the 11th Century, a surgeon's apprentice disguises himself as a Jew to study at a school that does not admit Christians.

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.