Tonta is staying for the weekend with her half-sister, the self-absorbed Vivian. At home, Tonta's stepfather is shot during a botched burglary, which leads to the discovery of family secrets that require Tonta to confront some unpleasant truths that she previously managed to suppress or remain ignorant of. Meanwhile, back at school, Tonta and Gomez discover that Coach Angel harbours a secret of her own (can you say, 'lucha libre?') while local punk band Ooot provides the soundtrack for a summer not soon to be forgotten.