Any gambler knows that luck can change. But now Clint's friend Ken Witner wants to change his luck for good...and he's betting on a high-stakes poker game to finance his new future. A lot of class-A cardsharps--including the great Bat Masterson--are headed for San Sebastian, Texas, for the big event. And Clint's on his way, too...strictly as a spectator. Then Witner cons him into serving as security, and Clint starts having second thoughts about whether a skunk can change his stripe. But when two hard cases arrive in San Sebastian aiming to collect a bounty on Witner--and then up the ante by killing one of the players--the Gunsmith knows the time has come to get in the game...