"The Missing" follows Tony, played by James Nesbitt (The Hobbit trilogy, Jekyll), as a man devastated by the abduction of his young son, Oliver, during a family vacation in France. He becomes a man obsessed, unable to accept that his child may be dead and spends years searching for him. Tony's exhaustive search fractures his marriage to Emily, played by Frances O' Connor ("Mr. Selfridge," A.I.: Artificial Intelligence) and threatens to destroy his life. Tcheky Karyo (Goldeneye, The Patriot) plays Julien, the French police detective who launched the initial search for the child. Even though he is retired in present day, he too cannot shake the small belief that the child may still be alive. Told using a fascinating narrative puzzle, "The Missing" explores the impact of a child's abduction, the emotional cost of obsession, hope and finding when to let go. This gripping thriller is told simultaneously over multiple time frames and set in France and London.

In Season 2, "The Missing" returns with a new case, new characters and a new location. The series follows Sam and Gemma played by David Morrissey ("The Walking Dead", "Extant") and Keeley Hawes ("Line of Duty", "The Casual Vacancy", "The Durrells"), whose daughter Alice went missing in 2003. In 2014, a young British woman stumbles through the streets of her German hometown and collapses. Her name is Alice Webster, played by newcomer Abigail Hardingham (Nina Forever), and she has been missing for 11 years. Alice's return sends shockwaves through the small community. Told in dual timelines, flitting between 2014 and the present day, we follow Alice's family as they are thrown back into a turmoil that threatens to tear them apart at the seams. When French missing person's detective, Julien Baptiste, played by Tcheky Karyo (Goldeneye, The Patriot), races across Europe to pursue a 12-year-old case that he never let die, we begin to explore the murky morality and emotional complexity of what happens when the missing child you've been longing to return actually comes back.