Texas Rangers in Action #21

Young Bubba St. John spends seven years training with the Texas Rangers, but Captain Leman judges him not yet mature enough for the company—so the frustrated youth rides off to the badlands, where he's quickly captured by outlaws working for a ruthless boss named White. Trapped in White's fortress and forced to prove himself, Bubba must draw on everything the Rangers taught him to survive a deadly standoff and discover whether he truly has what it takes to wear the badge.

Rocky Lane tracks an outlaw with a warrant, but when the fugitive slips a mysterious drug into his horse Black Jack's feed, the stallion bolts through town in a maddened state—forcing Rocky to pursue and figure out who's behind the sabotage before an innocent gets trampled. With the outlaw's identity revealed and Black Jack's pain wearing off, a final confrontation tests whether the loyal stallion will seek revenge or trust his master's judgment.

Texas Ranger Pete Shaw lies wounded after a bushwhacking ambush in Rattler Canyon, but a mysterious stranger known only as "Mister X" has his own reasons for pursuing the three gunmen responsible—and they're not what they seem. Mister X uses cunning and a dangerous bluff to draw out the criminals and force their hand in a crowded saloon, betting that witnesses will seal their fate where the Rangers' evidence couldn't. A tense cat-and-mouse game unfolds as the truth about his identity hangs in the balance.