Victoria's efforts to overcome husband John Cannon's memory of his first wife are thwarted when Apaches lay siege to their ranch, and she is kidnapped.

Victoria is exchanged for an injured Apache and receives two opportunities to live in safety and leave the husband who doesn't love her. Former suitor Anthony Grey rides in with an offer to take her to England, as Indians attack in earnest. Don Sebastian, her father, arrives with armed vaqueros to break the siege and insists his daughter return to the safety of her home in Mexico.

Billy Blue Cannon faces possible hanging when he is court-martialed on the charge of killing an army general's son.

Billy Blue saves an Indian girl from advances by a drunken army lieutenant, who is killed in the fight. When the girl flees to the Apache stronghold, Buck and Manolito risk their lives to persuade Cochise to release Blue's only eyewitness. Her testimony is discarded when the court learns her release was obtained by a bribe. It becomes obvious to John Cannon that the court-appointed defense is incapable of saving Billy Blue, and John personally takes over his son's defense

Buck angrily parts company with his brother John when a long-smoldering family feud is brought out into the open.

Fed up with menial jobs on the Chaparral, Buck is ignored when he complains to his older brother John and so he leaves the ranch once and for all. When Blue also turns against him, John finally agrees to go after Buck who refuses to return.

Gilbert Roland guest stars as the surprise heir to the Montoya ranch in this special two-hour presentation.

The sudden, peaceful passing of Don Sebastian Montoya brings his daughter Victoria, his son Manolito, John Cannon and Buck to the Montoya ranch to attend funeral services and to settle estate matters. All are amazed to learn the will leaves the vast Montoya holding to Don Sebastian's ne'er-do-well brother Don Domingo, a charming, irresponsible rascal currently living in Mexico City. Upon his return to the family home to claim his legacy, Domingo shocks the family by announcing he plans to sell the ranch and travel. A series of unexplained raids on his new-found cattle and property serves to uncover a little-known dimension of Don Domingo