1986. Cindy Zarzycki is 13 years old when she goes missing on her way to a Detroit ice cream store. Considered a runaway, Cindy remains just another missing child on a milk carton until Detective Derek "Mac" McLaughlin receives her file nine years later. Teaming up with Jen Liebow, a fresh-faced intern, Mac revisits every single clue to identify Arthur Ream, father of Cindy's boyfriend Scott, as his prime suspect. With dogged determination and superb investigative skills, Mac and Jen discover new and conclusive evidence - enough to convict the killer. Arthur Ream is sentenced to life in prison twenty-two years after Cindy's disappearance.