Willie West, a small boy, is very fond of his pet rabbit. He is unhappy because Hank (the rabbit) seems to be losing his former good health. When Willie tries to obtain assistance from his family, he quickly discovers that he has chosen the wrong time, for his father is feeling bad himself, and has no sympathy to waste on rabbits. A doctor is also hard-hearted. Willie is sent to the drug store to fill a prescription for his father, and he decided to see if the medicine will not cure the rabbit. To hide his wrongdoing from his parents, Willie fills the bottle with water. In the meantime the druggist has discovered that he has made an awful mistake, and put poison in the dose. He goes for the doctor, and the two hasten around to the house, in hopes of being able to save West’s life. They find he is still alive, and work hard to keep him from dying. While everybody is busy, Willie enters, and wants to know why the nasty medicine has killed his rabbit instead of curing it. Then there is a general rejoicing, except on the part of Willie.