Callum Lynch discovers that his ancestor Aguilar, from 15th century Spain, was an Assassin. Callum relives Aguilar’s memories to gain the knowledge and skills necessary to confront the Templars — age-old enemies of the Assassins — in the present day.

The video game movie stars Michael Fassbender, Marion Cotillard, Michael K. Williams, Ariane Labed, Jeremy Irons, and Brendan Gleeson.

“Assassin’s Creed” hits theaters on December 21.