Wyoming cattlemen (James Stewart, Walter Brennan) drive a herd to gold-rush Alaska.
At the height of the Yukon Gold Rush, cowboy Jeff Webster (James Stewart) and his partner, Ben Tatum (Walter Brennan), want in on the action, and decide to drive their cattle from Wyoming to Yukon. Along their journey, the two run afoul of crooked lawman Gannon (John McIntire), who vows revenge when they escape him. After traveling through all manner of terrain, Webster and Tatum finally arrive at their destination. But Gannon has business in the town, and he intends to make good on his promise.