Detective Lindsay Boxer's wedding plans are strained when a teenage mom is left for dead and her newborn is missing. Meanwhile, Assistant District Attorney Yuki Castellano is in the midst of the daunting case and her career rests on making sure a woman who is accused of murdering her husband is found guilty. When Lindsay discovers that the defendant might be innocent, it puts her at odds with her best friend, Yuki, and her boss, who needs her to focus on the missing child.