Jim's feelings of guilt are overwhelming when, during a fight with a thug, he diverts a bullet that accidentally hits a boy - causing life-threatening harm. Meanwhile, Daphne's boyfriend, Chris, steals the trilsettum serum from the Powell house and injects his wheelchair-bound father, Roy (Anthony Michael Hall), with disastrous results; Joshua proposes to Katie; and JJ's teacher takes unscrupulous steps to get him to join the school's academic decathlon team