Peanuts - Season 1 Episode 33 Why, Charlie Brown, Why? Happiness is a pile of leaves.
Overview: Linus is smitten by a new girl who comes to the neighbourhood school. But she develops the symptoms of leukemia and must go to the hospital for cancer treatment. Linus and Charlie Brown help her through the traumas of chemotherapy as best as they can while Snoopy plays at being the world's greatest doctor.