“The Fixer” is a British drama series created by Kudos for ITV, set in contemporary Britain. The storyline centers on John Mercer, a former soldier from the British Special Forces, who ends up in police custody after murdering his aunt and uncle upon uncovering their mistreatment of his sister, Jess Mercer. John is granted an early release from prison to join a secretive state security team, where he operates as a government-sanctioned assassin tasked with taking down criminals and corrupt police officers who evade the justice system.