Twentieth Century Fox has released a final trailer chockful of new footage for its movie adaptation of the Ubisoft video game Assassin’s Creed. Michael Fassbender plays Callum Lynch, a death row inmate and descendant of a secret society of assassins dedicated to stopping the Knights Templar.

A revolutionary technology allows for Callum to access his genetic memories and experience the adventures of his ancestor Aguilar in 15th century Spain. The film is directed by Justin Kurzel (Macbeth) and co-stars Marion Cotillard and Jeremy Irons. It arrives in theaters Dec. 21.

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