The Fixer(2008)

Fixer is a British drama series following John Mercer, an ex-Special Forces soldier imprisoned for killing his abusive aunt and uncle. Released early from prison under a covert arrangement, Mercer is recruited into a shadowy government unit tasked with eliminating criminals and corrupt officers beyond the reach of law. Torn between his need for redemption and the moral cost of state-sanctioned killing, Mercer navigates a dangerous world where loyalty is currency and survival depends on staying ahead of those who want him silenced. The series explores the blurred lines between justice and vengeance in modern Britain, where one man's second chance comes at the price of becoming the system's most expendable weapon.