Thor (Chris Hemsworth) returns to do battle with Malekith (Christopher Eccleston), the vengeful leader of a primordial race that seeks to destroy the Nine Realms, in this big-budget comic-book adventure set after the events of Marvel's The Avengers. With even Odin (Anthony Hopkins) unable to protect Asgard from the approaching darkness, the god of thunder reunites with Jane Foster (Natalie Portman) and prepares to make the ultimate sacrifice in order to save the world from certain destruction. Tom Hiddleston, Stellan Skarsgård, Idris Elba, and Tadanobu Asano co-star.