The MPU investigates the abduction of a young child, whose abduction is likely revenge related to her father's work.

A foster care worker is reported as missing, but after he ends his own life, the MPU starts to investigate a pregnant woman he was seen with who has been missing for two years. Meanwhile, Sidney follows Keith and fears he may be dangerous.

When a bride goes missing on her wedding day, Mike and Kemi discover the woman was living a deceptive life. Meanwhile, the mystery surrounding Keith's disappearance starts to unravel as he tells Jason and Nikki more details about his time in captivity and leads them to a cabin where they find a horrifying scene.