The conflict between Garfield and the K.O.S. escalates with the killing of Jack, Ellen's dog. César, after spraying cartoon graffiti depicting a dead dog, is shot with a syringe filled with morphine attached to the end of an arrow. He passes out, and wakes up to find one of his fingers cut off. César recovers the finger and it is reattached, with the letters "R U DUN" ("are you done?") tattooed as a warning.
A student Garfield has tutored, Rita Martínez, a Chicana, faces abuse from both the K.O.S. and Childress, and drops out. The school administration is mired in bureaucracy and unable to intervene. After Benny is found dead in the Los Angeles River, apparently of a drug overdose, it is revealed that Garfield took matters into his own hands, killing Benny and severing César's finger. Garfield lets Ellen leave as she disavows his actions.