In a small American town, the abrupt arrival of three mysterious men sets off a chain of events. These men, posing as FBI agents, commandeer the house of the Benson family, which includes the widowed Ellen, her son Pidge, and her father-in-law, Pop Benson. Within this house, the men establish a high vantage point overlooking the nearby train station. The Benson family's idyllic existence is shattered as they are taken hostage by the intruders, who reveal their true purpose: they intend to assassinate a visiting high-profile political figure from that very spot. Tensions rise as Sheriff Todd Shaw, who has a past unspoken affection for Ellen, becomes suspicious of the newcomers.

As Shaw begins to piece things together, he faces numerous obstacles, including disbelief from colleagues and increasing danger from the intruders. The pressure mounts as the train's arrival time approaches, forcing each character into a high-stakes game of deception, survival, and courage. The confined setting of the Benson home becomes a crucible for testing each person's resolve and principles. The situation becomes a test of wills, intelligence, and morality, with lives hanging in the balance and a ticking clock that won't wait for anyone.