Doc Baker realizes that something is wrong with the morphine in his pouches and he tells Nels that the company is very responsible and loyal and so something had to happen to it when it came here to Walnut Grove. He says no one messed with in the store and he had Albert drop it off for him. Doc Baker realizes that Albert must have switched the morphine for powdered sugar. He tells Charles to watch for symptoms of addiction. Charles finds the morphine in Albert's shoes and gives it back to Doc Baker. When Albert goes looking for it, Charles confronts him but Albert says he only did it once and he's sorry and it won't happen again. He lied and he has to go through a major major withdrawal to get off the morphine. Some of this episode is quite graphic where he vomiting up tons of grossness during the withdrawal.