The First Templar follows the story of two main characters, a French Templar, and his companion, a noble lady who has been proclaimed a heretic. Taking control over these two unlikely allies, the player must uncover the mysteries behind the Templar Order, play a role in a grand conspiracy, and discover the secret of the Holy Grail. The heroes face powerful opponents at every turn, including Sacracen, King Philip the IV of France and the Inquisition.