Counterfeiters are shipping $20 bills to the United States.

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In the Beaufort Sea, the Snowbird, a ship rented by the Royal Geographic Society, is locked in the ice. Sir Philip and Coleville stay aboard while the Captain and crew abandon the ship. They are found by natives where Sergeant Preston finds them and the adventure begins.

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Don and Jane Andrews are down on their luck and trying to sell their restaurant. He tried mining but the mine was worthless. Or was it? Sergeant Preston will find the truth.

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Bart Larson, a police-hating killer jailed by Sgt. Preston, has broken out at Selkirk and plans revenge, before he returns to the U.S. with his partners. Unaware of the partners, Preston asks his superiors for permission to track Larson alone.

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Near Midas Creek at Beaver City, a pair of outlaws are causing problems. Sergeant Preston comes to the area to solve the case.

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Fur trappers are being robbed on the trip home from the trading post. Preston and King must track down the trio dressed in black that have been committing these crimes.

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Taggert and his cronies take over the remote trading post run by the Lloyds for financial reasons. They injure Dora's fiance Corey, saved from death by Metka Joe. Sgt. Preston and King take on the villians amidst the snow drifts.

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Old Timer, a former sled dog who misses his team days, follows a pair of robbers who kidnap a store owner, after looting his safe of its gold.

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In the Gold Creek area, Walt Seivers is shot. He had just struck it big. Sergeant Preston arrives and is wounded. Will Sergeant Preston solve this problem?

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Preston and King befriend Hobo, an ownerless St. Bernard too big for most prospectors, who in turn helps rescue an express agent from robbers.

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Bull and Pierre are two desperate murders who escape from Sgt. Preston's custody. They steal his dog sled team and the Mountie sends King after them know the husky will find them.

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A boy lets out news of a gold strike.

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A dog named Mute leads Sergeant Preston to a hermit named Grizzly. Together they go after two fur thieves in an old mine where they are hiding after stealing furs at Elk River.

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Sergeant Preston is on the hunt for the man who attacked a prospector and tried to steal his diamond necklace.

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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.

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Crook Squint Baxter shoots a Mountie, one of his gang wears the Mountie's spare uniform to help them make their getaway.

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The only witness to a prospector's death turns out to be his pet collie, whose behavior has become unpredictable, and is suspected of being to blame.

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