The Roman Empire has been unable to fully conquer Britain, reaching a harsh stalemate in the North. Quintus Dias, a centurion and sole survivor of Pictish raid on a Roman frontier fort, marches north with General Virilus' Ninth Legion, under orders to wipe the Picts from the face of the Earth and destroy their leader, Gorlacon. Michael Fassbender stars as Centurion Quintus Dias, struggling through the snow to escape the menacing Picts who have just ambushed and destroyed his outpost, guiding General Virilus' Ninth Legion on a perilous journey into enemy territory to seek vengeance.