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Season guide

Bonanza: Season12

28 episodes Premiered Sep 13, 1970 Updated Oct 6, 2026
Previously on Bonanza

Season 12 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Picks up essential narrative continuity directly following the events of Bonanza Season 11.
  • ⚡ Character alliances, factions, and personal loyalties undergo significant shifts under escalating stakes.
  • ⚡ Addresses unresolved cliffhangers and thematic mysteries introduced during previous seasons.
  • ⚡ Establishes the primary seasonal conflict that drives serialized character arcs toward the finale.
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Season 12 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 12 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 12: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

11%
89%
Mytharc (3): Crucial lore & season climaxes
Core (25): Character development & subplots
Side Quest (0): Standalone / filler
S12·E1 Mytharc

The Night Virginia City Died

Sep 13, 1970 · 49 min

In the 12th season premiere, a series of destructive fires strike Virginia City, and always late at night. Is it the work of a ruthless arsonist, or someone very close to Deputy Cl

S12·E2 Core

A Matter of Faith

Sep 20, 1970 · 49 min

Dusty takes in orphaned Jamie Hunter, the son of a recently-deceased rainmaker. Jamie is determined to carry on his father's tradition by using drought-stricken Virginia City to pr

S12·E3 Core

The Weary Willies

Sep 27, 1970 · 49 min

The Weary Willies are hippie-like former Civil War veterans who are now drifters and live off the land. Despite protests from fellow ranchers and the people of Virginia City, Ben a

S12·E4 Core

The Wagon

Oct 4, 1970 · 49 min

After being taken into custody by a sheriff who does not care if he is guilty or innocent of a crime, Hoss escapes from the prison wagon with a woman he is convinced got a raw deal

S12·E5 Core

The Power of Life and Death

Oct 11, 1970 · 49 min

A man called Davis has shot Colonel Clayton and escapes on horseback. Joe and Ben join the posse that sets out to find Davis. Ben and Joe volunteer to cross the desert. Ben and

S12·E6 Core

Gideon, the Good

Oct 18, 1970 · 49 min

On the trail, Joe witnesses a woman kill a man, but the woman rides away before he can positively identify her. He rides into the nearest town, Black River and reports the crime t

S12·E7 Core

The Trouble with Trouble

Oct 25, 1970 · 49 min

When Hoss volunteers to be Sheriff of a town called Trouble, he soon finds out that the town had correctly been named. Hoss almost manages to arrest the whole town, and captures t

S12·E8 Core

Thornton's Account

Nov 1, 1970 · 49 min

Ben's new horse throws him down a steep slope, injuring his back. Joe tries to round up some help, but the settlers in the valley live in fear of the devious owner and his hired h

S12·E9 Core

The Love Child

Nov 8, 1970 · 49 min

A dying woman and her son are rejected by her father because she had a child out of wedlock.

S12·E10 Core

El Jefe

Nov 15, 1970 · 49 min

Ben and Hoss come to the rescue of Mexican farmers who are forced off their land by the greedy mine owner who runs the town of Prince River.

S12·E11 Core

The Luck of Pepper Shannon

Nov 22, 1970 · 49 min

Pepper Shannon is a dime novel hero and outlaw. Ben gives a job to Pepper Shannon on the condition the one-time outlaw stays away from Jamie, who happens to admire him.

S12·E12 Core

The Impostors

Dec 13, 1970 · 49 min

Hoss and Joe pretend to be stage robbers' partners in order to recover stolen Cartwright money. All goes well until the wife of one of the thieves shows up.

S12·E13 Core

Honest John

Dec 20, 1970 · 49 min

Jamie forms a bond with a bum and his tame crow. Before long, Jamie suggests they repair an old wagon and leave the Ponderosa.

S12·E14 Core

For a Young Lady

Dec 27, 1970 · 49 min

A girl's uncle and aunt want custody of her only because they believe she has the rights to her late grandfather's mine.

S12·E15 Core

A Single Pilgrim

Jan 3, 1971 · 49 min

Settlers from Virginia argue over Hoss' fate after one of them accidentally shoots him.

S12·E16 Core

The Gold-Plated Rifle

Jan 10, 1971 · 49 min

An insecure Jamie is unsure of his place in the family, having trouble adjusting at his new school and keeps getting harassed by a bully. When he takes Ben's prized gold-plated rif

S12·E17 Core

Top Hand

Jan 17, 1971 · 49 min

The Cartwrights are about to start a major cattle drive with other ranchers. It has been decided that Ben's foreman will be trail boss on the drive. Weatherby, a fellow rancher w

S12·E18 Core

A Deck of Aces

Jan 31, 1971 · 49 min

Bradley Meredith, a Ben Cartwright look-a-like, causes trouble when he sells land to the railroad. Ben has already turned down the deal, but Meredith, acting as Ben, accepts the d

S12·E19 Core

The Desperado

Feb 7, 1971 · 49 min

Hoss is held prisoner by a fugitive black couple who they admit hate white people and have nothing to lose by killing them.

S12·E20 Core

The Reluctant American

Feb 14, 1971 · 49 min

An English couple comes to Nevada to learn why a ranch owned by the British investment firm is the only company holding not showing a profit.

S12·E21 Core

Shadow of a Hero

Feb 21, 1971 · 49 min

Ben is shocked to learn the Army general he is backing as governor, advocates a policy of genocide towards all Indians.

S12·E22 Core

The Silent Killer

Feb 28, 1971 · 49 min

An epidemic of influenza hits the Ponderosa and the only person who seems sure of what to do is the wife of a doctor, whom Doc Martin says is a fraud.

S12·E23 Core

Terror at 2:00

Mar 7, 1971 · 49 min

A racist and his henchmen steal a Gatling gun, with plans to massacre everyone - including the Cartwrights - involved in a peace treaty signing between the U.S. Army and the Paitue

S12·E24 Core

The Stillness Within

Mar 14, 1971 · 49 min

Blinded by an explosion, Joe wallows in self-pity, and at first resists the efforts of a woman trying to teach him to live without sight, not knowing she is also blind.

S12·E25 Core

A Time to Die

Mar 21, 1971 · 49 min

While visiting the Ponderosa, Ben's friend, April Christopher, is bitten by a rabid wolf. Ben and April and her daughter must come to terms with her illness as they all realize th

S12·E26 Core

Winter Kill

Mar 28, 1971 · 49 min

The foreman of a neighboring ranch shoots a special steer belonging to the Cartwrights, and his scheming boss plots to take unfair advantage of the mistake.

S12·E27 Mytharc

Kingdom of Fear

Apr 4, 1971 · 49 min

Ben, Hoss and Joe, along with Candy and a fellow rancher, are jailed on false trespassing charges by a greedy mining tycoon. The despot runs a gold mine (i.e., a thinly-veiled pris

S12·E28 Mytharc

An Earthquake Called Callahan

Apr 11, 1971 · 49 min

The only person who can get Dusty out of jail is a professional fighter who will not return to Virginia City, so Joe stays on the man's heels no matter where he goes.

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