Thirteen years after their son's racist murder, Stephen Lawrence's parents continue their fight for justice. Meanwhile, DCI Clive Driscoll finds Stephen's cold case files and is convinced the case can be solved, despite opposition from within the police.

DCI Driscoll tries to win the trust of the Lawrence family and key witnesses. After a forensic breakthrough, the team need to prove the integrity of the evidence before they can make arrests.

Two men stand trial for Stephen's murder. Defence and prosecution argue over the integrity of the forensic evidence. While they await the verdict, Doreen Lawrence tells Clive that whatever the outcome, the fight for justice will go on.