Back at the fort, Argur explains to the hot-headed officer that the construction of the cross-country railroad has been halted outside Laramie by Jim Shanessy, who runs the town and wants the crew to stay and spend their money at his hotel and casino.

He is further annoyed when his arrival in Laramie is met with dismay from the chief railroad engineer, Lee Graham, Judge Pierce and Mayor Frank Logan, who expected him to bring troops.

Jim is at first pleased when Shanessy offers him free board at the hotel, but when the businessman's henchmen, brothers Con and Ace Winton, deliver a two-thousand dollar gift, Jeff recognizes it as a bribe.

In the lobby, Jeff agrees to meet later that night with Pierce, who is still suspicious of him, and then visits the ineffectual but good-hearted marshal, Orrie Sommers, and advises him to ready the jail cells.

Later, Jeff meets with Graham, Pierce and Logan, and then, armed with their promise of complete authority, visits the railroad work site, where the men are drinking, gambling and sleeping.

Graham calls a council meeting, at which some merchants demand Jeff's court-martial but, after he explains that he can rid the town of gambling and alcohol and only those who want to work will remain, they agree to give his plan a two-week trial.

Soon after, Jeff discovers that Orrie has been killed on the trail, and Lou informs him that Shanessy is the culprit, but the only way to convict him is to construct a jury out of the Wyoming women who have just been granted the right to vote.