Texas Ranger, Will Smith moved with his family to Texas during the early days of the Republic. Family strife is caused by the Comanche Indians who kill Will's brother James and abduct his nine-year-old nephew Fayette. Will pursues the Indians alone in hopes of rescuing the boy. Will ends up caught up in the rifts between the Republic of Texas, The Mexican government, and the Indian nation. His quest for revenge is waylaid when a Mexican beauty captures his heart. However, Will presses on and makes a frantic and dangerous journey back to Texas to warn President Mirabeau Lamar that the Mexican consider his Santa Fe Trade Expedition and armed invasion of Mexican Territory. It is a warning Lamar does not heed.