Thor: Ragnarok - 4K Ultra HD Blu-ray (Best Buy Exclusive SteelBook)

In Marvel Studios' "Thor: Ragnarok," Thor (Chris Hemsworth) is imprisoned on the other side of the universe without his mighty hammer 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 (Cate Blanchett). But first he must survive a deadly gladiatorial contest that pits him against his former ally and fellow Avenger – the Incredible Hulk (Mark Ruffalo) – and grapple with his silver-tongued adopted brother Loki (Tom Hiddleston), the fierce warrior Valkyrie (Tessa Thompson) and the eccentric Grandmaster (Jeff Goldblum).