"The Fighter" centers on a collie named Lad, one of Terhune's most beloved characters. Lad is known for his noble character and bravery, and this story showcases these traits in a dramatic and engaging narrative.In "The Fighter," Lad encounters a dangerous situation that requires him to protect his family and territory. A threat emerges in the form of either a wild animal or a human intruder, depending on the specific version of the story, and Lad must rise to the challenge to defend his home. His instincts and training as a protector come to the forefront as he confronts the danger head-on.The story follows Lad's courageous actions, highlighting his physical strength, strategic thinking, and unwavering loyalty. Despite the risks to his own safety, Lad's primary concern is the well-being of his human family and his territory. His determination and fighting spirit exemplify the qualities that Terhune admired in dogs and sought to depict in his writing.