Somebody's just pumped Clint Adams' old pal Talbot Roper full of lead. Who did it and why, only Roper knows—and he isn't talking. Not much to go on, but Clint aims to nab the pistol-packin' vermin who's responsible.

But the Gunsmith's search leads him onto a trail of stolen gold. The thieves have robbed the railroad, hidden the loot—and murdered two of Wells Fargo s best men. Now Wells Fargo wants revenge, the Gunsmith wants to find a killer, and everybody wants a cut of the reward money. And the Gunsmith's battle is just heating up. His next stop is Mexico—where some hotheaded revolutionaries are riding into town, hungry for gold... and thirsty for blood!