On December 21, 1988, Pan Am Flight 103 exploded over the Scottish town of Lockerbie, killing all 259 people aboard and 11 on the ground — the deadliest terrorist attack on British soil and one of the defining tragedies of the late Cold War. Among the dead was Flora Swire, a 23-year-old medical student. Her father, Dr. Jim Swire, would spend the following three decades refusing to accept the official account of what happened and who was truly responsible. Lockerbie: A Search for Truth, a Peacock limited series starring Colin Firth as Dr. Swire, tells the story of that pursuit — one man's decades-long demand for justice and his evolving understanding of a crime whose full truth remains contested.

Written by Patrick Moran and directed with measured gravity, the series is a procedural in the deepest sense: a step-by-step account of how an ordinary man — a family physician with no intelligence background — became one of the world's most persistent civilian investigators of a state-level terrorist act. Firth's performance is a study in controlled anguish, the grief of a father channeled into the meticulous discipline of inquiry. The series spans three decades, following Swire through the investigation, the trial of Libyan intelligence operative Abdelbaset al-Megrahi, Megrahi's controversial release in 2009, and the still-unresolved questions about the bombing's full context.

Lockerbie: A Search for Truth arrives on Peacock as one of the most substantive and emotionally demanding true-crime series in recent years — a show that takes its subject's complexity seriously and refuses the satisfactions of resolution. Dr. Swire himself cooperated with the production, lending it access and perspective that gives the series its moral ambiguity and its force. Five episodes that together constitute one of television's most rigorous engagements with the question of what justice means when the full truth cannot be known.