Knightfall episode 1x01, "You'd Know What to Do," premiered on December 6, 2017, initiating the series with the fall of Acre in 1291 and the subsequent search for the Holy Grail in Paris. The episode establishes a blend of historical fiction and political intrigue, focusing on Landry du Lauzon’s illicit affair with Queen Joan and the murder of his mentor, Godfrey. Critical reception highlighted an exposition-heavy start with praise for its action, while some noted issues with historical accuracy. For more details, visit History Channel . RECAP KNIGHTFALL You'd Know What To Do