Season 1

A retired soldier tired of guns returns to his family homestead in Arizona only to be forced to assume the position of local sheriff.

A bandit gang rides in from Mexico in search of a dentist for its leader.

An Indian claims the Ketchams' land.

Nichols welcomes a would-be actress to town, while Ketcham is infuriated by a booksmart lawman.

Two aging gunfighters are pressured into a final showdown.

Ketcham angers the Apaches when he tries to force a brave to end his hunt for a prize buck.

Nichols and Ketcham hire second-rate mercenaries for an attack on an outlaw stronghold.

A baseball game between a visiting Army team and the town's team becomes a betting event.

Ketcham is made a deputy and promptly abuses his authority.

After twenty years in a school back east Bertha's daughter is coming to town. Bertha plans to close down and become "respectable" during her daughter's visit, but instead Nichols convinces her to let him run her place while she's "gone".

An earthquake traps Nichols in a cellar with an Army vet and his mule while looters rampage around them.

An old bandit has his eye on one last prize: a money train.

A jealous boyfriend and his hulking brothers are after Nichols when he flirts with a temptress.

A man comes to town looking to kill Ruth's fiance, who hasn't told her everything about his past.

A black fugitive hits town with a vengeful former cellmate close behind.

Nichols races a con artist uncle to find a hidden stash of money.

Thieves mistake Nichols for a top safecracker and force him into their latest crime.

A con artist talks the townspeople into investing in a gold mine.

Nichols and a daredevil pilot search for killers.

Nichols sets out to catch Jesse James and collect the reward.

Nichols is forced into the ring with a professional boxer.

An accused killer escapes when Nichols is distracted by a barking dog.

Nichols and his pilot friend team up once more, this time to rescue a kidnapped girl.

When Nichols is killed, his identical brother comes to town to avenge his murder.