Two children playing in a playroom as voiceover describes the scene. CU of the two autistic boys playing in a playroom in UCLA. One child (Peter) draws on a chalkboard as the other (Marty) jumps around and throws wooden stick on the ground. Camera switches back and forth between the two children. Peter then switches to pencil sharpener as voiceover highlights the repetitious movement as Marty continues playing with the stick.