Sam Heughan, Ruby Rose and Andy Serkis star in this action thriller based on Andy McNab's novel. Special Forces operative Tom Buckingham (Heughan) and his girlfriend Dr Sophie Hart (Hannah John-Kamen) are en route to Paris when their train is hijacked by a band of mercenaries led by Grace Lewis (Rose). With all of the train's passengers held hostage, Tom uses his survival skills to fight his way to Sophie as he races to take down Grace before she follows through with her threat to blow up the Channel Tunnel and kill everyone onboard.

The cast also includes Tom Hopper, Noel Clarke and Tom Wilkinson.