Emma Banville (Helen McCrory), a human rights lawyer known for defending lost causes, sets out to prove the innocence of Kevin Russell (Sam Swainsbury), who was convicted for the murder of a school girl fourteen years earlier.
Cast:Brooke Haynes , Helen McCrory , Sam Swainsbury , Jonathan Forbes , Karima McAdams , Wunmi Mosaku , Robin Weigert , Jack Hollington , Anna Berentzen , Rebecca Callard , James Eeles , Michael Gambon , Christine Bottomley , Jamie Bamber , Rick Warden , Emma Hamilton , Allan Corduner , Ben Cartwright
Could child murderer Kevin Russell be innocent? Lawyer Emma Banville is going to find out. What will her investigations uncover? Could there be some conspiracy in play? Or is he guilty after all?
Kevin faces abuse from the public as Emma takes drastic measures to get the case back on track, Miriam makes a call that has devastating consequences for Emma.
As Kevin's retrial begins, the pressure mounts on Heather to get Kevin back in jail and wrap up the case. Emma has a breakthrough with new evidence, but powers outside her control seem set to crush her attempts to prove Kevin's innocence.
At Kevin's trial, against Emma's advice, he pleads guilty to manslaughter and is immediately freed - before doing something drastic. Emma locates Pullings but he is unhelpful before she secretly meets Yusef, Miriam's husband, back in the country he is also taken in by the police. Emma then flies to America to interview possible clients of Linda, notably sergeant Logan Bradley, but ends up getting arrested herself.
Emma briefly gets to speak to Logan, who says he loved and planned to elope with Linda, whom he met at a sex party on the US air force base organized by her uncle Phil Simms. A call from Greenwood sees her return to England where the women interview Simms, to no great advantage and Emma visits failed suicide Kevin Russell. Emma then goes to speak to McKinnon, a former cabinet minister during the Iraqi war whom she links to the US base and Linda but he is intransigent to her questions.
As Emma finally discovers the missing link in the case, she is put in great danger, with powerful forces prepared to kill her to stop the truth from being revealed.