Missing

When an autistic teenager is discovered wandering lost at the side of the road, DS MJ Croft assumes he is a missing person. However, she soon realises that it is the boy's mother who has disappeared, and becomes worried for her safety. Meanwhile, DC Jason Doyle and Amy Garnett deal with a young woman whose fiancé has disappeared suspiciously.

When a 16-year-old girl goes missing, her parents claim it is completely out of character, and are distraught when DS MJ Croft, head of the Dover Missing Persons Unit, finds vodka in the teenager's bedroom. DC Jason Doyle, however, is suspicious that the father is abusing his daughter. Meanwhile, Amy helps 65-year-old Stan Marsh search for his long-lost twin brother.

The team investigates when Tom Laird's wife Irene vanishes suddenly, and DS MJ Croft comes to blows with her superior, DCI Ford, when she suspects Tom of murder. MJ is not convinced when new evidence reveals another side to Irene. Meanwhile, Amy is keen to find Martin Cadzo, who disappeared after testifying against his father in a fraud trial, and whose uncle has left him a large inheritance.