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 a powerful new threat, the ruthless Hela.

100 years in the future, planetary colonization missions have begun as a necessity to help secure the survival of the human race. The first of these missions on a spacecraft known as Ark One encounters a catastrophic event causing massive destruction and loss of life. With more than a year left to go before reaching their target planet, a lack of life-sustaining supplies and loss of leadership, the remaining crew must become the best versions of themselves to stay on course and survive.