

Season 12 • Episode 6
LatestDS Satchell is desperate to find his wife and daughter now that they are misssing. Walker and Connor try to find the evidence to put the Bilkin family behind bars. Satchell decides to take matters into his own hands when he feels he has nowhere else to turn.
Devised and written by Lynda La Plante as a follow-on from her successful television series Prime Suspect, this vast police procedural follows police detectives in England as they investigate crimes and the trials that come about as a result.
Writing
La Plante's procedural precision—every detail earns its payoff.
Acting
David Hayman's Walker: exhausted, abrasive, weirdly magnetic.
Trivia, insights & behind the scenes
La Plante essentially invented the female-led police procedural with Prime Suspect; Trial & Retribution let her explore systemic failures from multiple institutional angles.
The 2008 series 10 expansion to 10 episodes was a rare late-career expansion for a British crime drama, suggesting La Plante still had ITV's full confidence over a decade in.