Feb 10, 2021 - Tom Buckingham (Sam Heughan), a special forces operator, is taking Dr. Sophie Hart from London to Paris to propose. When their train is deep inside the Channel Tunnel, Grace Lewis (Ruby Rose) and her team of heavily armed war criminals seize the train and hold hundreds of passengers hostage. Grace threatens to expose the British government's darkest secrets and blow up the Channel Tunnel if her ransom demands are not met. Unarmed and cut off from his counter-terror team, Tom is the only hope that Sophie and the other passengers have to make it out alive.