The most precious and enigmatic relic of Christianity, the Holy Grail, was lost without a trace as a result of the fall of the city of Acre, the last stronghold of the Templars. The existence of the Order is now under threat and depends on whether the Cup of Christ will be found. To thwart the destruction of the Order, the Grail Quest dispatches the leader of the Templars — the brave warrior Sir Landry.