Ally desperately wants "normal" for her half-sister Kayly, something she never had herself thanks to her liberated mom. First on her list of to-dos is contacting Kayly's dad, who promised he'd stay out of Kayly's life just as Ally's own dad once did. When Mom leaves the country on assignment, Ally drops in on the guy to introduce him to his baby daughter. But Kayly's dad doesn't live there--her half brother, Zach, does. And his shocking offer to help Ally find "normal" for little sis is nothing compared to what happens next.