S3 E1 • Old Ben's Gold

Première diffusion : 3 octobre 1957

S3 E2 • The Rebel Yell

A man who grew up in Georgia during the U.S. Civil War suffers a knock on the head during a robbery, causing him to think he is back home during Sherman's devastating march through the state.

Première diffusion : 10 octobre 1957

S3 E3 • The Mark of Crime

Two bank robbers arrive in Hudson Bay and lay low. Sergeant Preston and Yukon King go to Hudson Bay on an unofficial tip to find the robbers.

Première diffusion : 17 octobre 1957

S3 E4 • Storm the Pass

Sergeant Preston and King are in Skagway, Alaska to deliver mail to an outpost set up for mounties. Though he lacks official jurisdiction, he is helping clean up the town of lawlessness, and is helped by a tenderfoot from Texas, after helping the man avoid being conned.

Première diffusion : 24 octobre 1957

S3 E5 • Old Faithful

Sergeant Preston once again infiltrates a counterfeiting gang, one he also suspects of murder. One of the members is an enormously strong but simple-minded man. Old Faithful, the murder victim's lead dog, joins the sled team.

Première diffusion : 7 novembre 1957

S3 E6 • The Skull in the Stone

An explorer who fakes a claim of finding a sea passage to the North Pole uses sabotage and trickery involving small skull stones to keep from being exposed as a fraud. He is willing to commit murder if necessary.

Première diffusion : 14 novembre 1957

S3 E7 • Ghost Mine

A man who along with his wife wants to move back to the United States is targeted for murder so the would-be killers can take his mine. Sergeant Preston and King help fool the would-be killers into thinking the man is dead in order to trap them.

Première diffusion : 21 novembre 1957

S3 E8 • The Jailbreaker

Sergeant Preston is on the hunt for an escaped killer whom Preston helped put behind bars. The killer mercilessly gunned down another mountie and friend of Preston's, and is out to kill Preston.

Première diffusion : 28 novembre 1957

S3 E9 • Out of the Night

A trigger-happy old man's imaginings of people trying to rob his gold mine turn out to be right.

Première diffusion : 12 décembre 1957

S3 E10 • Three Men in Black

Miners are being terrorized by three robbers clad in black, led by a well-liked woman.

Première diffusion : 19 décembre 1957

S3 E11 • Lost River Roundup

A fur smuggler is coercing a woman, whose father has a weak heart and could die at any sign of excitement, into supplying him with furs to smuggle across the border.

Première diffusion : 26 décembre 1957

S3 E12 • The Old Timer

A family man whose son needs an operation is accused of stealing gold that he was safeguarding. An aging malamute aids in the pursuit of the real thieves.

Première diffusion : 2 janvier 1958

S3 E13 • Battle at Bradley's

Two gold robbers firing shots from a ridge have Sergeant Preston pinned down in a cabin with two other men, one of whom is a washed up doctor paralyzed by fear.

Première diffusion : 9 janvier 1958

S3 E14 • The Generous Hobo

Two ex-convicts try to blackmail a former cellmate into giving them the money out of the safe at his trading post. Sergeant Preston and King get help from a St. Bernard.

Première diffusion : 16 janvier 1958

S3 E15 • Follow the Leader

Two murderers escape jail and steal Sergeant Preston's sled team. Burdened with an inferior team, he sends King out to find his own team and lead it, along with the killers, back to him.

Première diffusion : 30 janvier 1958

S3 E16 • Gold Rush Patrol

A young man tells the news papers where is gold strike is and now claim jumpers are out to get it.

Première diffusion : 6 février 1958

S3 E17 • Grizzly

Sergeant Preston is on the trail of fur thieves. He gets help from a reclusive oaf named Grizzly.

Première diffusion : 20 février 1958

S3 E18 • The Diamond Collar

Sergeant Preston must find the man who attacked a prospector and attempted to steal his diamond necklace before the would-be thief tries again.

Première diffusion : 27 février 1958

S3 E19 • Escape to the North

Two hold-up men - one wounded - force their company on an old ex-convict friend who is now going straight. They threaten to reveal his past to his young daughter unless he helps them by getting medical aid.

Première diffusion : 6 février 1958

S3 E20 • Outlaw in Uniform

After critically wounding a young mountie, three outlaws steal his gear and supplies, including his uniform, allowing one of the criminals to pass himself off as a mountie.

Première diffusion : 13 février 1958

S3 E21 • Boy Alone

A man comes to the Yukon from England to have his young cousin, a boy, killed for the boy's estate, and is aided by three outlaws.

Première diffusion : 20 février 1958

S3 E22 • The Criminal Collie

A man is murdered and his dog is the only witness.

Première diffusion : 27 février 1958