Tom Buckingham (Sam Heughan) is an elite SAS operator planning to propose to his girlfriend, Dr. Sophie Hart (Hannah John-Kamen), during a romantic trip to Paris. However, their journey takes a deadly turn when a heavily armed gang of mercenaries, known as the Black Swans, led by Grace Lewis (Ruby Rose), hijacks their Eurostar train deep beneath the English Channel.

The Black Swans, a family-run group of ruthless terrorists, plan to expose government corruption by releasing evidence of illegal activities and atrocities committed by British officials. Their mission, however, is multifaceted: they aim to extort a huge ransom while broadcasting their violent agenda to the world.

Grace Lewis, the group’s leader, is a highly skilled and cold-blooded operative driven by a personal vendetta against the British government. Her brother, Oliver Lewis (Owain Yeoman), and father, William Lewis (Tom Wilkinson), play significant roles in the group, with a shared history of violent operations for hire.

As the hijacking unfolds, Tom Buckingham is forced to tap into his training and instincts to save the hostages, including Sophie, who becomes a target due to her proximity to Tom. The confined, high-stakes environment of the train creates a claustrophobic and tense atmosphere, heightening the sense of danger.

The plot delves into Tom’s internal conflict between his duty as a soldier and his desire to protect Sophie and lead a normal life. His tactical prowess is put to the test as he navigates the train, taking on the mercenaries in a series of intense and brutal confrontations. Grace and Tom engage in a deadly cat-and-mouse game, each anticipating the other’s moves with precision.

As the British authorities scramble to manage the crisis, including high-ranking officials like George Clements (Andy Serkis) and Declan Smith (Noel Clarke), it becomes clear that there are layers of political intrigue and betrayal at play. The film explores themes of loyalty, sacrifice, and the moral complexities of counter-terrorism operations.

In the climax, Tom confronts Grace in a fierce battle, leading to a dramatic showdown that tests his limits. With ingenuity and sheer willpower, Tom manages to outmaneuver the terrorists, securing the safety of the hostages and bringing Grace’s reign of terror to an end. The aftermath sees Tom and Sophie reevaluating their future, as the harrowing experience has changed their perspectives on life and each other.

“SAS: Red Notice” combines high-octane action with psychological depth, portraying the relentless determination of a soldier caught in a personal and professional crossfire. The film highlights the thin line between heroism and vigilantism, questioning the true cost of security and justice in a world rife with hidden agendas and brutal power struggles.