Blue Canadian Rockies

While trailing Forest Ranger Charles Carter, who is suspected of permitting lumber man Henry Mitchell to cut restricted timber, Gene fires at a dangerous mountain lion and apparently kills Carter. Actually, Bill Wright, Mitchell's associate, killed Carter because the ranger had discovered tussock moth infestation in the forest, and if the infestation was not reported, the trees would die and have to be cut, thereby profiting Mitchell and Wright. In order to compensate the best he can, Gene sells his sportsman's camp and gives the money to Carter's daughter Helen . En route to Texas, Gene discovers the infestation and is assigned by the Forest Department to supervise the program of spraying the area with DDT from the air. After the first day of spraying, the DDT is blamed by furious stock men for the many animals found dead of poisoning.

In the 1850s, in a logging town on the Mississippi River, a conflict between the people of a mill town and the lumberjacks who work downriver. Romance and deceit are catalyzed by the arrival of the gambling river boat, River Lady, owned by the beautiful Sequin. Bauvais, a representative of the local lumber syndicate and Sequin's business partner, is trying to convince H.L. Morrison, the mill owner, to sell his business.

The Hurley's own a lumber mill and want to harvest all the timber in the valley. They kill the Forester and substitute their brother Dusty in his place. Dusty then says all the trees are infected and must be cut down. But Rex Allen is suspicious and writes to the Forestry Department and gets involved with the murders.

By stripping all the timber from the land, a lumber baron threatens everyone with flooding. Gene won't let that happen.

Estranged brothers (John Payne, Richard Arlen) find themselves on the same lumberjack crew hired by a feisty widow to clear the timber from her Nevada property.

Russ Evans, A WWII veteran army pilot, decides to check up on the widow of an old war buddy of his, Elaine Graham. The logging company she inherited is doing poorly, but Elaine gets an order in for a huge shipment of lumber. Russ and his friend Squirrel volunteer to help her cut the timber for the shipment, along with her friends Smacksie Golden and his girlfriend Lil Boggs, who are not used to doing physical labor. Russ pilots the plane to deliver the lumber before the company falls to a slimy businessman.

This black-and-white archival film outlines the importance of Canada's forests in the national war effort during the Second World War.

An ambitious lumberjack abandons his saloon girl lover so that he can marry into wealth, but years later becomes infatuated with the woman's daughter.

Delegates and workers discuss the issues that effect the Timberworkers’ Union, the reasons for the formation of the Combined Council of Timber Workers Delegates (CCD) and their industrial action.

A tough, hard-drinking Alaska logging foreman likes fighting only slightly less than working.

In the cattle town of Lost Valley, Buck Courtrey, saloon owner and political boss, covets Tharon, daughter of Jim Last, a small rancher; and when rebuffed, he has Last killed. Tharon swears revenge with her father's own guns and organizes a vigilante band to check Courtrey's activities. Learning that she loves Billy, a cowpuncher, Courtrey kidnaps and threatens to kill him unless Tharon agrees to marry Courtrey following his divorce from Ellen. Courtrey's wife informs Tharon of Billy's whereabouts, and she rescues him in time to join the townspeople attacking Courtrey's gang. Courtrey is pursued by Tharon, who kills him and returns to become Billy's wife.