Five episodes, one crash, ten lives you'll never forget. British TV at its most brutal.
Season 1 • Episode 5
LatestDI Tolin closes the case, and several other mysteries are resolved as Christine's husband makes a shocking confession, Sidney's name may be cleared, and an amateur video may explain everything.
The story of a major road accident and a group of people who have never met, but who all share one single defining moment that will change their lives.
Writing
Horowitz's puzzle-box storytelling rewards patience.
Acting
Henshall's haunted detective anchors the chaos.
Editing
Seamless timeline jumps that actually illuminate.
Creator
Anthony Horowitz
Paul McGann
Richard Reeves
Douglas Henshall
D.I. John Tolin
Matt Ryan
Dave Brown
Phil Davis
Brian Edwards
Sylvia Syms
Joyce Thompson
Dean Lennox Kelly
Danny Rampton
Lucy Griffiths
Jane Tarrant
Jocelyn Jee Esien
Cindie Smith
Claire Rushbrook
Karen Donnelly
David Bamber
Sidney Norris
Christopher Fulford
D.C.I. Stephen Maitland
Christopher Villiers
Keith Fowler
Kate Ashfield
Ann Stallwood
Jo Woodcock
Jodie Tolin
Trivia, insights & behind the scenes
Horowitz wrote this after a real M25 pile-up, determined to make every victim feel like a protagonist rather than collateral damage.
The motorway set was built on a former airfield — no actual traffic was ever stopped, despite how dangerously real it looks.
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