This relatively early episode was strange, because it depicts Dillon, shortly after killing three men in self-defense, in psychological torment, reflecting on all the men he's killed over the years. It actually causes him to resign.
Perhaps the strangest thing is the ending. Chester convinces Dillon to put his gun belt on again because Chester admits he's not up to the task and only Dillon can face the gunfighter. But after Dillon rearms himself, we just see him ride off to face the gunfighter; we never actually see how the action is resolved.