When Dillon’s father Harry races back to their tiny apartment to rescue his child, the apartment is in rubble and there is no sign of his son. Three years later, thousands of miles away in Dublin, Harry spots a six-year-old boy in a crowd and is convinced he is Dillon. Desperate to find his son, Harry’s obsession tears apart his marriage to Robin, exposing shameful secrets that lead to the truth of what happened to their son on the night he went missing.

• Colin Morgan
• Toni O'Rourke
• Elva Trill
• Kerr Logan
• Simon Callow
• Soumaya Akaaboune
• Kelly Campbell
• Mansour Badri