Knightfall recounts the fall, persecution, and burning at the stake of the Knights Templar, as orchestrated by King Philip IV of France on October 13, 1307. The series focuses on the fictional Templar leader Landry du Lauzon, a brave warrior discouraged by the Templars' failures in the Holy Land who is reinvigorated by news that the Holy Grail has resurfaced.
Banished from the Knights Templar after the discovery of his affair with Queen Joan, Landry must work to redeem himself under the watchful eye of a mysterious veteran of the Crusades. King Philip formulates a plan to take action against the Templars, while dealing with the return of his erratic, eldest son, Prince Louis.
Now back in the Knights Templar Order as an Initiate, Landry continues his training under the harsh guidance of Talus, the battle-hardened Initiate master. DeNogaret implores King Philip to build a legal case against the Knights, seeking the aid of a former Templar to help carry out his plan. Prince Louis is tasked with a shocking secret mission.
After suffering a casualty, the Knights Templar prepare to exact revenge.
A mysterious knight arrives at Chartres Temple and brings the Knights Templar devastating news. Louis struggles to produce an heir, creating a rift between him and his wife. King Philip sends Gawain on a mission where he comes face to face with his former Templar brothers.
Landry reunites with his daughter, only to be separated once again. Growing impatient with DeNogaret's legal strategy, King Philip prepares his army for war. Margaret discovers one of Prince Louis' dark secrets.
King Philip launches a massive attack on the Chartres Temple, igniting a battle that will determine the fate of the Knights Templar.
Captured and brought back to Paris, the Knights Templar must stand trial for heresy.
The death of the Knights Templar Order is imminent as Landry and his Templar brothers are sentenced to burn at the stake.