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Heimdall subsequently fled and his whereabouts are unknown.
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Thor returns to Asgard and sends Surtur's skull down to the vaults but then finds Heimdall ( Idris Elba) has been replaced as sentry of the Bifrost Bridge by the inept Skurge ( Karl Urban) who explains that Odin accused Heimdall of treachery.
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Thor learns from Surtur that Odin ( Anthony Hopkins) is not on Asgard, so uses Mjolnir (his hammer) to escape and destroy Surtur, keeping his crown/skull, the demon's power source. Surtur believes his destiny is to bring about Ragnarok, the complete destruction of Asgard. Thor ( Chris Hemsworth), having failed in his quest to locate the Infinity Stones and having also been dumped by Jane (although he insists it was a 'mutual dumping') is hanging in chains above a fire pit before being brought before the monstrous fire demon Surtur. The story opens about two years after the events in Avengers: Age of Ultron (2015)'.
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