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 1900, unscrupulous timber baron Jim Fallon plans to take advantage of a new law and make millions off California redwood. Much of the land he hopes to grab has been homesteaded by a Quaker colony, who try to persuade him to spare the giant sequoias...but these are the very trees he wants most. Expert at manipulating others, Fallon finds that other sharks are at his own heels, and forms an unlikely alliance.

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.

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.

Montana ranch owner Cyrus Bigbee sends his foreman, Gene Autry, and Rawhide Buttram to his Canadian timber land to stop the marriage of his daughter Sandy to Todd Markey, whom he dislikes. Sandy wants to turn the property into a dude ranch, with Carolina Cotton and the Cass County Boys (Fred S. Martin, Jerry Scoggins and Bert Dodson) among the entertainers, and runs up against local timbermen who want it for cutting timber. When a Mountie is murdered, with suspicion pointing to Todd, Gene finds the real culprit and brings peace to the area.

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.

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

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.

This homegrown Erin Brockovich story follows former Whakatāne sawmill worker Joe Harawira and his long battle to reveal the impact that workplace toxins have had on his community. In the '80s after being afflicted by health issues, Harawira noticed co-workers getting sick. In 1988 he helped found SWAP (Sawmill Workers Against Poisons) and began investigating the effects of exposure to dioxins, a byproduct of timber treatment.

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

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.