An off-duty SAS soldier, Tom Buckingham, must thwart a terror attack on a train running through the Channel Tunnel. As the action escalates on the train, events transpire in the corridors of power that may make the difference as to whether Buckingham and the civilian passengers make it out of the tunnel alive.
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Sam Heughan
Tom Buckingham
Ruby Rose
Grace Lewis
Andy Serkis
George Clements
Tom Wilkinson
William Lewis
Tom Hopper
Declan Smith
Hannah John-Kamen
Dr. Sophie Hart
Noel Clarke
Major Bisset
Owain Yeoman
Oliver Lewis
Jing Lusi
Zada
Ray Panthaki
Prime Minister Atwood