A new girl comes to the neighbourhood school and Linus is smitten with her. Unfortunately, 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 they can while Snoopy plays at being the world's greatest doctor.
Unfortunately the movie Why, Charlie Brown, Why? is not yet available on HBO Max.
| Writing | Charles M. Schulz | Writer |
| Directing | Sam Jaimes | Director |
| Production | Bill Melendez | Producer |
| Production | Lee Mendelson | Executive Producer |
| Sound | Judy Munsen | Music |
| Editing | Chuck McCann | Editor |
| Editing | Warren Taylor | Editor |
