Founded in the 12th century, the Knights of the Templar were a wealthy, powerful, and mysterious Catholic order charged with protecting European travelers visiting sites in the Holy Land and carrying out military operations.
Knightfall's series premiere picks up in 1291 during the Fall of Acre, which marked the destruction of the last Templar refuge in the Holy Land. The defeat ultimately forced the order to move its base of operation to France, and marked the loss of the mythical Holy Grail. In Acre, we first meet Landry (Cullen) and his fellow brothers, who barely escape the bloodshed with their lives.
Fast-forward 15 years, and we find Landry and the order at their new headquarters in Paris. Under the protection of Pope Boniface VIII (Jim Carter) and still manipulating the obstinate but easily persuaded French King Philip IV (Ed Stoppard), the Templars are safe in their new stronghold. As they soon realize, though, the battle has come to them: William de Nogaret (Julian Ovenden), the king's atheist lawyer, has sinister machinations in mind. Meanwhile, some knights are clamoring for a new quest to reclaim the Grail.