Out fishing, Felipe finds Carillo and three other fiends who plan a raid on Los Angeles and the alcalde's murder for revenge, is caught, believed deaf, left bound. Diego finds and liberates Felipe, but the alcalde sneers the 'minion' invented the story to 'save his skin' and continues preparing for the ringing of the new mission bell in front of distinguished guests, when the garrison will attend unarmed. Zorro rides to deal singlehandedly with the robbers' sniper and crossbow, disguised as monks, then with vindictive Carillo who escaped from the plaza...