The Big Valley S01 E16 The Invaders

While out counting cattle Heath comes across a dead animal. When he gets down off of his horse to investigate, he is shot by the same rawhiders who killed the cow. When they realize that he is still alive, they decide to take him back to the ranch for a finder's ""reward"". Once there they find that all of the other men are gone for at least a week, leaving the house and all within ripe for the picking.