La sentinella

Tex and Carson, chased by the Apaches, take refuge on the Mesa Serrada. In that labyrinth of canyons and rugged rocks they come across a Southern officer, unaware of the fact that the Civil War has long since ended. The task of the two rangers is to help the man return to civilization and recover the plantation that was expropriated from him... After accompanying John Rickfield to Fort Bayard, Tex and Carson discover that something terrible happened in the Southern officer's past: his family was exterminated in Atlanta while he was under arms. And someone has hatched a terrible plot to take over his property. Someone who will do anything to prevent John from returning to his home alive and well…