“No toys in the fish tank.” “A boy takes off his shirt to swim, but not his shorts.” These are some of the many rules 12-year-old Catherine has for her autistic younger brother, David, to help him cope with others. Catherine loves her brother but is frustrated dealing with his autism. His needs always come first in the family. While attending David’s therapy sessions Catherine meets Jason, a boy who can only talk using cards. This opens a whole new world for Catherine and helps her to appreciate her special brother.