The mission partially fails, but the remaining Lewis siblings resurface and plan a major counterstrike. They hijack the Eurostar train carrying Tom and his girlfriend, Dr. Sophie Hart (Hannah John-Kamen), as it travels beneath the English Channel. Tom is forced to use his special forces training to fight back, making him the only person who can stop them. However, things are not as they seem; the hijackers have a larger scheme in play that may reach the highest levels of the British government, potentially involving a secret pipeline. The film reaches a climax that fans have noted is reminiscent of the original "Mission: Impossible".
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