George distracts Orry, whose brooding about Madeline wrecks his West Point performance. Bent bluffs his way out of a court-martial but its president eventually bullies him out of West Point. At a party hosted by Tillet Main, Justin scolds Madeline for disagreeing with separatism and arranges for a slave to give public offense so the overseer is allowed to punish him with branding. Bent trades on his status as the bastard son of Ohio's U.S. Senator to get commissioned as an infantry captain in the Mexican-American War. In command once again of lieutenants Orry and George, he sends them on a suicide mission. Both survive but Orry is crippled for life. Constance, the daughter of the colonel who saves Orry from dying from his wounds, becomes George's true love. When George's father dies, he resigns his commission and returns home. The branded slave runs away and even reclusive Orry joins the manhunt, reuniting him with reluctant Madeline and starting their secret affair.

George and Orry's friendship is severely tested when one of the Mains' slaves escapes. Orry still travels to Pennsylvania for George and Constance's wedding, but when he hears a speech given by Virgilia Hazard at an abolitionist rally, he realizes the depth of their divisions. George's mother decides that he should assume full control at the family iron works, much to his older brother Stanley's dismay. Orry's father dies, and his first act as owner of the plantation is to fire the cruel slave overseer. Orry's cousin Charles finds himself challenged to a duel and Orry acts as his second. Orry's sister Ashton is something of a flirt and being pursued by lawyer James Huntoon. The Mains visit the Hazards for the summer, where Charles and George's younger brother Billy, who are both West Point-bound, become close friends. Orry's younger sister, Brett, takes an interest in Billy but he seems to prefer Ashton. Madeline's marriage to Justin continues to decline after he beats and whips her.