Boyden is surprised when his estranged daughter Amy shows up at the station, offering third-hand info that her boyfriend, Phillip Cooper, witnessed two drug dealers killing a man. While there are no reports and he demands Amy leaves, he later discovers the story is true. After Amy is arrested for shoplifting, Boyden discovers she has recently had a baby, his granddaughter Sophie. Boyden then confronts Cooper, dragging him down to Sun Hill to make a statement. Beech and Glaze arrange a safehouse as AMIP continue their investigation, but Cooper sneaks out overnight to buy drugs. Unaware he has blown the security of the safehouse, Sophie is abducted as Amy has a walk with her father, leaving Boyden determined to find the murder suspects and rescue Sophie, but he struggles to impress onto Amy that she needs to get away from Cooper for her own good.