There are eight adventures altogether, with each volume containing four adventures each. These stories tells the story of a young boy who experiances circumstances in his life that lead him to seek revenge. Thanks to the aid and mentoring of two Texas Rangers, Shane Dawson becomes a welcome help to them in tracking down the most violent criminals of west Texas, thus earning him the opportunity to himself become a Texas Ranger. The eight books introduce you to Shane and his acuaintenances as they ride on many adventures together that span the course of Shane's life as a lawman. The Caliber of Justice allows the reader to become famliar with the main character and then follow him through his career as a Texas Ranger as he tracks down outlaws, robbers, Indians and horse thieves. The books, in order, are: Texas Ranger Bounty Hunter Grapevine Stage Smoking Gun Wagon Train Inside Man Cattle Drive Santa Maria