Diego is excited for his old college friend, McCrea, to visit from Spain. McCrea is now an author who got permission from the King of Spain to do a book on Zorro and to get assistance from the army on the topic. McCrea, not knowing about the army's corruption, begins investigating around town, but continues to get flak for being the "army's dog". He then sees the army attempt to capture a family whose father they killed for advocating freedom. After realizing how bad the army is, he decides not to work with them, but continues his investigation - getting increasingly suspicious of Diego...