Season 3

Two outlaws rob a stage, kill the driver and leave the shotgun guard for dead. The guard survives the attack and, with the help of a passerby, manages to make it to Diablo. The man can't defend himself from charges of robbery and murder because the bullet wound has caused complete amnesia. Annie and Lofty set out to prove the man's innocence.

Della envies Annie's freedom and trick riding skills. When the rodeo comes to town, Della's father refuses to allow her to meet her boyfriend, one of the best competitors. When Della decides to run away, she falls under the sway of an unsavory couple, who agree to return to the ranch to retrieve her clothes. Actually, unintentionally armed with information Della has provided, the crooks plan to rob her father.

A gang of hired killers rides into Diablo. Lofty believes that they're in town to murder a state senator with powerful enemies in the capitol. When Lofty discovers that the gang's leader once rescued him from certain death during their days in the U.S. Cavalry, he is reluctant to take him on and possibly kill him in a shoot-out. As a result, the townspeople force Lofty to resign.

A tenderfoot from Mississippi travels to Diablo to visit his sister and loses his watch in a stagecoach robbery. The headstrong youth is soon telling everyone how to do their jobs - including questioning Lofty's search for the outlaws who robbed him and his sister's experienced ranch foreman about his business methods. The young man really bites off more than he can chew when he discovers the identity of the thieves and tries to bring in the entire outlaw gang single-handed.

During a heated election campaign between honest lawyer Dave Morgan and Carter Holmes, a crooked politician, the contest takes a violent turn when Holmes tries to have his competitor murdered. When his henchmen fail, Holmes hires a notorious gunfighter to take care of the job, but is surprised when the gunman promises to get Holmes to back out of the election without violence.

While riding in the desert, Annie and Tagg meet Tim Lafferty, a strange old Irishman who claims to be searching for treasure with the help of leprechauns who followed him to America from the Auld Country. When a neighbor tries to gain possession of the Biddle family ranch by killing Eliza's brother, Tim proves invaluable to Annie and Lofty by helping them smoke out the killers.

While rummaging through an old trunk, Tagg and his friend Johnny Ward, the son of a murdered lawman, find evidence that they believe proves his uncle is an ex-convict and may be part of the outlaw gang who recently robbed Diablo's bank.

When their handicrafts meant to trade for goods at the local trading post are stolen by white men, the Navajo tribe decides to seek vengeance by going on the warpath. Since whites are forbidden to enter the reservation, even to seek peace, Annie must dress as an Indian maiden to prevent bloodshed.

Annie, Lofty and Tagg try to help a young Indian when he inherits a stagecoach line with a valuable mail contract after his white patron, the owner of company is bushwhacked and murdered. A rival businessman who craves the contract tries to frame the young brave so he can take over the valuable concession.

After years of fruitless prospecting, old Scissorbill Childers finally strikes it rich and decides to use his new-found wealth to open a bank to grubstake other prospectors who are searching for gold and silver. New found wealth always attracts criminals so Lofty has his hands full trying to thwart claim-jumpers and swindlers. To make matters worse, the government assayer determines that Childers' gold ore comes from the same claim as that of a murdered prospector.

Annie, Tagg and Lofty try to help a history buff who believes he has found a map that could lead to gold hidden by the Spanish explorer Coronado over in the early 1500s. The man's search for the treasure is hindered by a gang of outlaws who want the loot for themselves.

Annie and Lofty investigate when two outlaws hold-up the messenger carrying the Cattlemen's Association receipts to the bank. They lose the trail near the shack of a strange old junk collector who claims to have no knowledge of the robbery or the criminals. Annie doesn't buy the man's story and sneaks into the man's home to search for clues to where the money has been stashed.

An ex-convict recently released from prison is killed by outlaws before he can recover the gold he stole ten years earlier. The crooks believe he may have confided the location of the hidden loot to his son. When the youngster insists on visiting a ghost town while en route to his aunt's home in Colorado, it appears that the boy may know something after all.

A retired army officer who has been recalled to active duty in Washington decides to sell his valuable ranch for less than market value just to be rid of the property. He places advertisements in every major newspaper west of the Mississippi seeking buyers. His advertisement not only attracts men interested in real estate, but outlaws who are interested in the large sums of cash the buyers are carrying.

A Dutch gunsmith, the inventor of an new rifle with superior range, plans to give the weapon to the United States Army in gratitude for being allowed to immigrate. A crooked businessman decides to take advantage of the man's patriotism and sends an impostor posing as an officer to take possession of the gun before the real colonel can arrive in Diablo.

While Annie and Lofty pursue an outlaw who killed a sheriff, Tagg tries to coach his schoolteacher on the finer points of romance.