Duke and Charlie visit an Army fort to see Duke's friend Clarence Mullins, a minister who was also a lieutenant at the fort, while also picking up supplies. They learn that Mullins was kicked out of the Army for refusing Major Gaston's order to massacre a band of Modocs and other orders over time, and that he has now gone into the hostile Modoc territory to preach the Gospel to them. Everyone assumes he has been killed by the Modoc. Duke with Charlie decides to ride into the Modoc territory to determine if Mullins is still alive. Surprisingly, they find that he has succeeded in his mission. However, Duke also feels that Mullins is overly optimistic about his ability to bring the Modocs and the Army officers together in peace as the Army builds a road through the Modoc territory.