The narrative begins at Fort Lamoine where Colonel Brown struggles with frequent desertions. Bob Owens, an eighteen-year-old corporal with a troubled past, is tasked with pursuing a group of heavily armed deserters. Bob's journey brings him face to face with old acquaintances, including Gus Robbins, another runaway whose path intertwines with Bob's. As the plot develops, Bob uncovers a conspiracy among the recruits planning to desert the post to work for local ranchers.
Throughout the journey, Bob maintains his resolve to serve honorably, contrasting sharply with his discontented peers like Bristow, who constantly grumble about military life. Bob's dedication earns him the respect and trust of his superior officers, leading to his first independent command. He successfully captures the deserters through a combination of stealth and strategy, despite threats of revenge from the ringleaders.
Later, the narrative expands to include George Ackerman, a young herdsman whose cattle ranche and inheritance are threatened by dishonest relatives. George and Bob's paths cross again when George enlists as a United States scout to help combat border raiders and cattle-thieves. The interwoven storylines bring together runaway youths, loyal soldiers, and frontier outlaws in a high-stakes struggle for justice and survival in the untamed West.
The action climaxes when Bob and George embark on a perilous undertaking to rescue captive children from a war-party of Kiowas. Through courage, careful tracking, and quick thinking, Bob proves his mettle, turning his past mistakes into a foundation for a respectable military career. The novel concludes with the restoration of order at the fort and a gentle hint at the redemption and maturation of its youthful protagonists.
