Brighton based Detective Superintendent Roy Grace is a hard-working police officer who has given his life to the job, but his career is currently at rock bottom. He’s fixated by the disappearance of his beloved wife, Sandy, and running enquiries into long forgotten cold cases with little prospect of success. Following another reprimand for his unorthodox police methods, Grace is walking a career tightrope and risks being moved from the job he loves most.

On 26 November 1983, six armed men break into the Brink's-Mat security depot, stumbling across gold bullion worth £26m.

Taylor's hopes for a fresh start post-parole are jeopardised by cellmate Dee's arrival. As Dee takes Taylor under his wing, a vicious attack tests their bond, forcing Taylor to choose between protecting Dee and his own chances at freedom.