Heyes and Curry are on their way by stagecoach to see Sheriff Lom Trevors about the state of their amnesty. The stagecoach pulls into Diablo Station so that the horses can be rested, and the passengers can get cups of coffee.
Into this scenario walk four gunmen. They tie up all the passengers, including Heyes and Curry, and then settle down to wait. Curry asks them what they're waiting for, and the leader of the outlaws tells them that they are waiting for Sheriff Lom Trevors to come. According to Chuck, the head of the outlaws, his brother had been killed by Trevors some time earlier, and he is burning with revenge and wishes to kill Trevors.
Heyes and Curry are extremely worried. Not only is Sheriff Lom Trevors a good friend, but the success of their amnesty depends on him. They must find a way of letting him know that he will be walking into an ambush. But how?
Then Heyes has one of his ideas.