Parallel storylines from the past and present unfold in the southwest of France as ancient and modern-day conspiracies are unearthed, revolving around three hidden books that hold the secret of the true Grail. Alais and those closest to her must battle to protect the secret, while in the present day Alice faces a race against time to piece together her long-buried history.
Elenco: Jessica Brown Findlay , Vanessa Kirby , Emun Elliott , John Hurt , Katie McGrath , Sebastian Stan , Tom Felton , Tony Curran , John Lynch , Kate Mosse , Janet Suzman .