When Dr Jim Swire discovers his daughter, Flora, has beenhuged in the bombing of Pan Am Flight 103, he begins to search for answers. Desperate to know why this was allowed to happen, and exactly who was responsible, Jim starts to ruffle the feathers of authoritative figures in order to get them working.

As Jim continues his campaign for truth and justice, two suspects - Abdelbaset al-Megrahi and Al Amin Khalifa Fhimah - are indicted for the bombing, believed to be Libyan Intelligence Agents. Now his focus has to shift to the fight to bring the men to trial.

Jumping forward to 2000 and the Lockerbie trial finally begins after 12 long years. But as the trial begins at Camp Zeist, a former US military base in Utrecht, The Netherlands, Jim begins to question the official evidence against the suspects. Have they got the right men for the crime?

After coming to believe the authorities have got the wrong man behind the bombing, Jim grows closer to the convicted Abdelbaset al-Megrahi. Soon, he embeds himself within Megrahi's appeal case, as well as the conspiracy theories swirling around it. But by doing so, Jim finds himself increasingly isolated from his family.

It's now 2009, over 21 years since the bombing, and Jim is left at a loss when Megrahi gives up on his appeal attempt. In return, the sickly Megrahi is released on compassionate grounds. Questioning everything he has come to believe, Jim wonders if he'll ever know the truth about what happened.