Detective John Munch loves his granddaughter Katie more than words can describe. She means the world to him, especially after the unexpected and tragic death of his son and Katie's father Josh. So when his granddaughter becomes a victim in a case of the Manhattan Special Victims Unit, it all hits close to home for Munch. It is hard for him to see his granddaughter become one of the cases that the unit has taken on. Now Munch has to take care of his granddaughter while figuring out how to be a parent all over again and help his granddaughter through the traumas she has been through.