Despite the opposition of the owner of the Red Rock Runner Railroad in 1893, the new settlers of Florence, Oklahoma, are determined to build a real town.
While performing his duties on the ranch, Hank the Cowdog finds that his bones are disappearing, and his friend Drover claims to have seen a monster do it.
Fifteen-year-old Lexie McDonald, after the death of her father, disguises herself as a boy and sets out along the dangerous Pony Express trail in order to find her brother, Callum, who has been on the run for a crime he did not commit.
Freelance gunslingers Virgil Cole and Everett Hitch find Allie French working in a brothel and relocate with her to Brimstone where they are hired as deputy sheriffs, but a string of murders and frequent disagreements between the local saloon owner and preacher make it difficult for Cole and Hitch to keep the peace.
When a rancher is reported murdered by cattle rustlers, the people of Ox-Bow decide to take justice into their own hands and lynch the alleged killers. Includes discussion questions.
