""A factual drama based on the 10th Cavalry, a Negro regiment formed in 1866. Lawlessness in Tucson brings martial law--and the 10th--into open conflict with the town's white populace and an army of outlaws. Members of the honorary 10th Cavalry, formed in Los Angeles in 1966, are featured in this episode."" (TV Guide)

Victoria is kidnapped by outlaws and forced to work as a cantina waitress. Enroute to the Montoya Ranch with a large sum of cash for a cattle purchase, Victoria and Buck are overpowered by bandits Bates and Gideon who take her to an outlaw refuge and leave Buck stranded in the desert. Made to work as a cantina hostess for town boss Robbins, the stunning Victoria soon has the entire outlaw band vying for her attentions. She decides to play one man against the other in a plan to escape.

Stranded in the desert following an attack by bandits, John, Victoria and Manolito add to their troubles when they seek shelter in what they assume to be a deserted ghost town. While on their way to town in a buckboard, John, Victoria and Manolito are accosted by renegades Bennett, Lippert and Moore who make off with valuables and horses, leaving John seriously hurt. Manolito locates a makeshift shelter in what appears to be a deserted community only to learn the hard way that the town has other residents, among them Marcum, an aging former lawman who resents intruders.

A former gunfighter's new life as a Cannon ranchhand is jeopardized by four enemies. Other Cannon ranchhands and Johnny's teen-age son, Dan, who are unaware of Johnny's reputation, misinterpret his refusal to wear a gun and otherwise go out of his way to avoid confrontation with anyone. Any doubts as to Rondo's courage are soon dispelled however, when he is challenged by three men out of his past.

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

Manolito is jailed in a case of mistaken identity on charges of holdup and murder. En route back to the Cannon ranch from a cattle purchase, Manolito is arrested when mistakenly identified as a member of a gang who held up a gold shipment hours earlier. He is released when an old friend Dave Redman, a fast-rising leader of the community in which Mano is being held, vouches for him. Later, when Mano finds himself framed for murder, he learns who his real friends are.

A half-breed Indian lad whose life has been saved by men of the Cannon ranch strives to repay the debt. John Cannon, Buck and Manolito intervene when ranchers Fraley and Henderson attempt to hang Wind, whom they accuse of rustling cattle. The boy's indebtedness later figures significantly in the defense against a series of mysterious and costly raids on a major cattle drive.

Embittered former revolutionary Diego De La Paula leads his newly-formed army of liberation in a series of harassing raids on the vast lands and herds of the Cannons and Montoyas. He charges they won their wealth at the expense of his deposed hero, Maximilian. Aware of the seriousness and growing destructive power of the vengeful Diego, John Cannon and Don Sebastian Montoya join forces to thwart the attacks with a unique plan that results in a face-to-face confrontation between the elder Montoya and the self-styled liberator. good show

Blue is the victim of a practical joke that finds him enlisted as a temporary lawman Tricked into being sworn in as a deputy marshal by Manolito and his Uncle Buck, Blue is forced to take the job seriously when the town's regular lawman departs leaving him in charge of the entire town. Blue's new authority enables him to exact a sweet revenge on Manolito and Buck.

Men of the Cannon ranch are caught in the middle of a confrontation between a neighboring rancher and a young cavalry officer determined to arrest him. When Lt. Jason Adams reveals his intent to bring in neighboring rancher Henry Simmons on a long-standing desertion charge, Billy Blue makes an ill-advised effort to warn Simmons and his daughter Martha. Resigned to giving himself up, Simmons prepares to do so but, fearing for her father's life, Martha reacts and provokes a military siege of their home.

Joe, foreman of the Cannon Ranch, threatens to quit over John Cannon's mistrust of a new hired hand but later realizes that John's suspicions were well-founded. In need of new help for an upcoming cattle drive, Joe hires drifter Jelks, whose attitude and actions are questioned by the boss. Dissention erupts between John and his foreman over the new man, who inadvertently solves their differences by proving one of them wrong.

The Cannon Ranch faces wholesale resignations by hired hands because of a series of attacks on men and cattle by an unknown assailant. Convinced that the source of the fear is a former employee, John directs a search for the man. Cannon and his men are stunned on learning they have been tracking the wrong man after they find their quarry dead, victim himself of the mysterious marauder.

After accidentally uncovering a silver deposit, an excited Buck Cannon wastes no time in talking Manolito into joining him in a major real estate investment. Unable to raise the down payment to Jeff Patterson, who has agreed to sell his ranch, Buck invites Manolito to be his financial backer for half-interest. After Victoria has turned over a priceless necklace to her brother for collateral on a loan, the new land owners learn hat their silver cache is worthless.

Don Sebastian, wounded by a would-be assassin, plays on the sympathy of his family and friends in a scheme to gain control of the Cannon Ranch. On his pretended death bed, Don Sebastian extracts a promise from Manolito to marry Anita Santiago, a beautiful but headstrong neighbor in a plot to join the two ranchos. Victoria gives in to her father's wish to persuade John to sign the Cannon Ranch over to Manolito. Don Sebastian's plan begins to falter when Mano learns that his father is faking, and the assassin returns for a second attempt on Don Sebastian's life.

Albert Salmi is the sole survivor of an Indian battle who decides to live as an Apache. Needing to fulfill an Army contract for the sale of horses, John Cannon, Buck, Manolito and Wind head for Indian country to round up a wild herd. Confronted by a tribe of embittered Apaches led by White Horse and Red Eagle, Cannon is allowed access to the herd only on condition that White Horse accompany the group with Buck left behind in the Apache camp.

Billy is taken hostage by Apaches after he ignores Buck's advice and frees a white girl from them. Buck learns Apache leader Santos considers himself to be Sarah's husband. Buck hesitates to use force which would break the Cannon peace treaty with the Indians. Santos threatens Billy's life unless Sarah is returned.

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

Embittered over the loss of his home and grandson in fire during a bandit raid, Casement vows to track down Reese, Gail and Wiley, the men responsible. He trails them to Tucson where his friends of the Chaparral offer to help, but the determined Casement wants to face the men alone.

En route to a bordertown fiesta, Buck invites trouble when he befriends a Mexican boy. Buck encounters Homero Jose, an itinerant promoter whose income comes from fights he stages between friendless Mexican youths for anyone willing to wager on the outcome. Repelled by the sight of 11-year-old Beto being beaten, Buck takes him away in hopes of finding him a new home; but a vengeful Jose takes up their trail, vowing to get the boy back.

Efforts of a young Apache warrior to make peace with the white man are undermined by the belligerence of his long-embittered tribal chief. Determined to ease the ever-present threat of all-out war, youthful Two Pony negotiates a plan for peace with John Cannon whereby the Indian lad is temporarily housed at the High Chaparral to learn the blacksmith trade. His rebellious chieftain, Grey Wolf, thwarts the peace effort by carrying out a series of harassing attacks against Cannon and his herds.

John Cannon faces alienation of family and friends when he maintains his decision to aid a band of revolutionists. John Cannon, seeing a financial windfall in the sale of guns, ammunition and horses to ill-equipped Mexican rebels, negotiates with their leader over strong objections from his Mexican-born wife, Victoria, and her brother, Manolito. Even when Manolito elects to leave the Cannon ranch for good, John continues his profit-making deals despite the reaction of his family.

Returning home from a visit to her father's ranch, Victoria and her escorts Sam and Pedro find infant Joey, the only survivor of an Indian raid on his parent's wagon. When the boy's grandfather, Dan Casement, spared only because he had gone ahead to scout for water, insists on leaving with the child, a concerned Victoria balks, insisting that she can better care of the baby en route to the safety of the Cannon ranch. Relenting, Casement joins them in their slow trek across the desert while Indians stalk them, awaiting the best time to attack.

Needing to get away temporarily from the rigors of ranch life, Buck chooses the raucous Fourth of July holiday for the time and the roughest town in the territory for the place Soon after his arrival in Spokes, a lawless community run by tough China Pierce, Buck witnesses a saloon shootout in which Pierce's son Bud is killed by Jones, an old friendless trapper who is seriously wounded. Although it was a fair fight, cowering townspeople refuse to help Jones, so Buck goes to the man's aid and then mounts a vigil to await the inevitable explosive confrontation with Pierce.

Convinced by Victoria that he needs a vacation, John reluctantly leaves Buck, Manolito and Blue in charge of the ranch and returns to an Indian uprising. Victoria convinces John that he needs a break from the rigors of his work. The Cannons take what is intended to be a carefree vacation, leaving the ranch in the eager but inexperienced hands of Buck, Manolito and Blue. John returns to find that the boys have made a few mistakes, not the least of which is the provoking of an all-out Apache uprising.

A former prison doctor accused of malpractice becomes the only man to whom John Cannon can appeal in efforts to save the life of his seriously ill wife. Lawman Tad Garnet requests a night's lodging at the Cannon ranch while escorting Mathew Kendel, a one-time prison physician, to jail on charges of willfully causing the deaths of many of his convict patients. When Victoria suddenly falls ill and needs an operation to save her life, John must ask the now-embittered Kendel for help.

Victimized by two amateur but charming teen-aged cattle rustlers, Buck and Manolito make the mistake of trying to reform them. Intent on impressing her outlaw father, Annie Croswell and her friend Bet Roberts steal the horses of Buck and Manolito. Easily tracked and captured by their victims, the two teen-teenagers are given a second chance by being brought to the Cannon Ranch, where it is hoped they can be dissuaded from following the footsteps of Annie's father.

Left in charge of the Chaparral, Blue fails in his first major test of responsibility and then takes drastic steps to redeem himself. In the absence of his father, John Cannon, his Uncle Buck and Manolito, Blue is given full authority to run the ranch only to have their prize stallion stolen by bandits. Hurt by his father's criticism and determined to regain his confidence, Blue faces the bandits alone in his attempt to retrieve the valuable horse.

Bandits take advantage of Manolito's affinity for a pretty face by absconding with one of his girlfriends and cash, the theft of which threatens the loss of the Cannon ranch. Entrusted with money to buy a huge cattle herd, Manolito is overpowered by Matar and Kyle who head for the border with both the booty and Manolito's fiery girlfriend, Juanita. John Cannon, Buck and Blue and Manolito give chase but it is the feminine wiles of Juanita and Victoria Cannon with which the bandits soon learn they must contend.

Don Sebastian Montoya repudiates his promise to sell a small village on his land to tenants after Vaquero obtains the purchase money. Vaquero received the money from a dying friend to buy the village. This matter becomes complicated when he learns the money may have been stolen by his friend and bandit, Miguel Morales.

Ranch foreman Sam Butler returns to his native border town to avenge the death of his daughter. Sam, raised by his adopted father Ben Lynch, learns his daughter has been killed by Lynch's would be gunfighter son, Tom. Reunited with his Mexican wife Trinidad, Sam refuses all advice and vows to kill the boy. John Cannon leads the ranch hands to the border city in an attempt to stop the shoot-out.

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.

Ricardo Montalban guest-stars as a priest who obtains money from the Cannon family, presumably to finance his search for a religious statue, but channels the funds to the poor. Father Sanchez is forced to ride to New Orleans to purchase a fake statue when Victoria persuades John Cannon to provide the needed funds. Buck and Manolito serve as escorts for the priest and his statue. They are joined by Mavis and Gillis, who plot to steal it. When Gillis starts to rob the group, Father Sanchez reveals the statue is phony.

John Cannon is forced to relive his final days in the Civil War by a man he disfigured in combat. Vengeful Finley Carr and his brother Stacy kidnap Victoria and head for high country, certain John will follow. Carr captures John and subjects him to physical exhaustion and hunger for three days as he prepares to reverse the roles of their first meeting. Buck, Billy Blue and Manolito force one of Carr's men to help plan a rescue.

John Cannon drives gold seekers from an abandoned mine on his land and they retaliate by plotting to kill the Cannons. Lije Driskill, Johnny Faro and Shorty Bleeson fail in an attempt to kill Buck, Sam and Victoria, who are driving back to the ranch with dynamite to use at the mine. Driskill and his companions then raid the ranch and drive off the cattle. Buck, mistaking a friendly kiss from Victoria, leaves to dynamite the mine, and plans to make it his final job for John. Billy Blue rides to help Buck. but is captured by Driskill, who plans to kill the young m

A bounty on Apache scalps disrupts peace between the Cannons and the Indians. When Apache raids close Judah Austin's mine, he offers Stoner a bounty for Indian scalps despite John Cannon's objections. Stoner's son Chad is wounded in an attack on the Apaches and turns against his father while recuperating at the High Chaparral ranch.

When John Cannon feeds hungry Apache children orphaned by Pima Indian attacks, his ranch is threatened by the two tribes. Buck and Billy Blue find the young Apaches in the desert including Choddi, grandson of Geronimo. Geronimo and his braves come for the children, but the young Apaches mistake them for Pimas and hide in the desert. The Apaches threaten revenge if they are not returned, while Pimas wait nearby endangering the children.

Mexican bandit El Lobo breaks jail and plots to plunder the Cannon Ranch supplies to avenge his imprisonment by Manolito. When heavy rain prevents wagons from reaching the ranch with needed supplies, Buck, Billy Blue, and Manolito attempt to get a mule train through. El Lobo traps the group in an isolated canyon.

Lucien Charot raises his freight prices by having Indian attacks faked against his wagons. John interests an El Paso stage and freight line in extending operations to Tucson with local merchants financing the plan. Charot increases the phony raids and the frightened merchants withdraw from the deal. John then puts his ranch up to guarantee the initial safety of the new line. Victoria joins John for the first ride into Tucson while Charot and his gunmen wait in ambush.

A dishonest Indian agent jeopardizes the future of an Apache reservation started by John Cannon. Capt. Albert Surtee threats the hungry reservation Indians harshly. John takes the law into his own hands and fires Surtee. He suspects Surtee has hired renegade Chief Cubero to start trouble and to steal government cattle. John and Billy Blue attempt to prove John's suspicions by exposing themselves to attack by Surtee and renegade Indians.

Buck hires saddle tramp Orville Kilroy, who hides his criminal past and quickly becomes the most popular hand on the Cannon Ranch. Blue admires Kilroy's ability with a gun, the bunkhouse gang respects him as a top hand, and John Cannon is fascinated with his chess game. Telford Burris and his two sons trail Kilroy to Tucson and accuse him of running out with the money from a robbery. When the Burrises corner Kilroy, Buck must help the new hand to keep Blue's idol from crumbling, or turn the thieves over to the law.

Buck tries to find and return the missing husband of Ann Simmons, an old girlfriend. Ann gives Buck a valuable diamond ring to identify him as her representative if he finds her husband Jack. Buck is overpowered by the Truscott gang in a border town. Simmons rescues Buck and the diamond, but refuses to return to his wife. Buck is recaptured on the way home by the thieves and his chances for survival appear slim.

Victoria reopens Tucson's only school and befriends a troubled Mexican boy, but is kidnapped by the boy's father. Alberto Ruis, wanted in a slaying, abandons his son Carlos to flee a posse. Carlos remembers his father's promise to return, agrees to live with a local family and attend Victoria's school. He reacts quickly to her affection, but class bullies taunt the boy until he rides to rejoin his father. Victoria and Pedro locate Carlos with his father, Alberto, but Alberto kidnaps Victoria for ransom.

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.

Tired of the daily grind as cowhands on the Cannon Ranch, Manolito and Buck leave to operate their own recently-purchased spread and find they have only added to their woes. Convinced they can have an easier life by being their own bosses, Manolito and Buck tell John of their decision to go out on their own. It is not long before the somewhat lazy Manolito and the less-than-neat Buck realize that as friends they make bad business partners.

Told to make himself at home while a houseguest at the Cannon ranch, Don Sebastian Montoya, father of Victoria and Manolito, does just that and inadvertently provokes an Indian attack. Unaccustomed to the rugged life that is part of the operation of the Cannon ranch, wealthy Don Sebastian Montoya proves a disruptive influence by refusing to be without the luxuries he enjoys on his own estate. The demanding houseguest ignores one rule too many and the result is an Indian uprising.

In a flashback sequence, John Cannon and brother Buck retrace their lives of years ago when lawman John captures Buck, who is wanted for bank robbery and murder. En route to town for trial, the brothers are followed by Buck's former partners, who are determined to see that the true story never is known.

Ricardo Montalban guest-stars as a wounded bandit leader who is captured by the Cannons and tells them his followers will destroy them unless he is released. When El Tigre's brother, Rafael, threatens to attack the ranch to free the notorious bandit, John Cannon has difficulty persuading his wranglers to hold the outlaw for trial in Tucson. During the attack Victoria frees El Tigre when he promises to leave peacefully and to stop the bloodshed, but he shows his true colors by making John his captive.

Billy Blue Cannon quits the ranch after a quarrel with his father and leads a peace representative of the President to Cochise. On the trail Blue falls in love with Kelly's adopted Apache daughter, Moonfire. Kelly, an idealistic dreamer, meets Cochise's demands for a strip of land separating the High Chaparral from Tucson. This would cut the Cannons' supply route and threaten them with bankruptcy. John, angered by the peace terms and his son's choice of a wife, prepares to defend the ranch against the Apaches.

For the first time in his life, Manolito falls seriously in love but his romance takes a tragic turn when Comancheros decide to settle a debt. Enamored of beautiful Mercedes Vega De Sonora, a childhood sweetheart who returns to the Montoya ranch for a visit after a long absence, Manolito proposes marriage. Their plans are disrupted when bandits led by the vengeful Sanchez and Teniente kidnap Mercedes in an ambush. Though seriously injured, a desperate Manolito joins the men of the Chaparral in search for his loved one.

John Cannon is accused of killing the daughter of a Mexican sheepherder and is condemned to death unless steep ransom is paid. Escaped convicts Mitch, Cable, and Kolos accidentally kill the girl while heading for Tucson to reclaim stolen money. They escape the sheepherders by forcing John to change into the prison clothing of the inarticulate Kolos. John is captured and condemned to death, but Manolito promises money for John's release. Buck and Billy Blue fail to raise the ransom

Henry Silva guest-stars as a revolutionary who plans to assassinate Benito Juarez, exiled President of Mexico, on the Cannon Ranch. Manolito frees his old friend Santos from a Mexican jail, where he has been imprisoned by the French as a terrorist for Juarez. Santos and his sister, Pilar, are taken to the Cannon Ranch where Victoria arranges for Juarez to plan an invasion of Mexico. Manolito learns Santos has turned traitor and plans to conquer French-ruled Mexico himself. Before Manolito can warn his friends, Santos's followers take over the ranch and prepare to kill Juarez upon his arrival.

Fernando Lamas guest-stars as a Mexican bandit turned revolutionary who captures and prepares to execute the Cannon Ranch hands to prove his power. Manolito is jailed by El Caudillo, the Mexican bandit, when Conchita lures the group across the border. Billy Blue Cannon is allowed to escape, and he returns with El Caudillo's old enemy, Don Sebastian, and the entire group, except ranch hand Pedro, then is jailed. Hope for escape fades when El Caudillo prepares to shoot the group before frightened villagers to prove his power and to force them to join his revolution to conquer Mexico.

Mistakes of an inexperienced eastern bank clerk who attempts to settle on a ramshackle ranch near the Cannon family threaten to wipe out the cattle industry of the territory. When Creed and Meg Hallock make repeated mistakes, John Cannon sends Buck, Billy Blue and Manolito to help them survive. Creed buys a non-existent herd and is swindled again when he innocently purchases diseased Mexican cattle. John ruins the greenhorn financially when he orders the cattle killed before they can infect other animals.

Buck Cannon jeopardizes his life, when he tries to turn two Apaches into wranglers. Sourdough and Saddleblanket quickly become valuable hands. When an Apache war party kills three ranchers and kidnaps the two Indian wranglers, all but Buck believes the two Apaches are killers and have reverted to their old ways. The High Chaparral group tracks the war party to an Army fort the Indians have captured and where Buck lies seriously wounded beyond reach of his comrades. Almost dying of thirst, Buck's only chance for survival lies in an appeal to his Indian wranglers inside the fort to turn on their fellow Apaches.

Buck Cannon's plans to open a saloon are threatened by a temperance group led by spirited Frances O'Tolle. Oscar Hipple sells his saloon to Buck, but conceals the fact it was wrecked by Miss O'Tolle's crusaders. Buck hires Warren Case to help restore the saloon and learns Miss O'Tolle started the crusade when she came West to marry Case, but found him drunk. She leads a second assault and Buck's deputized customers jail her for trespassing.

When Victoria saves the life of a man injured in a stagecoach plundered by Comancheros, she learns the man has sworn to kill her husband. The injured man, James Forrest, blames John Cannon for the death of his family in the Civil War. The Comancheros, led by Macklin, capture the wandering pair, who are lost in the desert. Victoria again saves Forrest by convincing the bandits he is John Cannon and worth a high ransom.

An Army deserter accused of murder takes Billy Blue as hostage. Graham Jessup enlists Billy Blue to help him escape by fabricating a story that he has been mistreated because he is a Negro. Jessup makes Billy his prisoner when the young man hesitates to lead him into forbidden Apache land. The pair are cornered in the forbidden land by a large band of Indians, complicating the rescue efforts of John Cannon, Buck and the cavalry.

The celebration of a peace treaty with the Indians is cut short for the Cannons by scalp hunters disguised as lawmen. Nickanora, an old friend of Manolito and Victoria, admits he has come from Mexico with Johnny Ringo's gang to scalp Indians for profit. When the gang kills an Indian family, Mano goes after the group alone and is captured. John Cannon and the High Chaparral wranglers locate Manolito, but hesitate to start a gun fight, fearing an approaching Apache war party will be alerted by the shots.