Story Structure — 6 Plot Phases
Season 1: Missing Boys & Hospital Murders
Taylor and Creegan are paired to investigate snatched schoolboys, uncovering a Stuttgart link. Their investigation shifts to a hospital ward where patients die from overdoses, revealing a tattoo clue. Creegan's aggressive tactics lead to a dog tracking breakthrough and the arrest of Leonard Stoker, concluding a season of methodological clashes and tactical successes.
Key Events
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Missing Boys Investigation — Taylor and Creegan are paired to investigate three snatched schoolboys. Characters: DI Susan Taylor, DI Dave Creegan
Location: Police Station
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Stuttgart Link Discovery — Creegan identifies a connection to three missing boys from Stuttgart three years prior. Characters: DI Dave Creegan
Location: Records Office
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Surveillance Failure — Surveillance on the prime suspect yields no actionable intelligence. Characters: DI Susan Taylor, DI Dave Creegan
Location: Stakeout Van
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Satellite Van Breakthrough — Aerial surveillance captures images of the boys held in an airtight room. Characters: DI Susan Taylor, DI Dave Creegan
Location: Satellite Command
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Dog Scent Tracking — Creegan kidnaps the suspect's dog to track the scent to the crime scene. Characters: DI Dave Creegan
Location: Abandoned Estate
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Hospital Mass Death — Multiple ward patients die simultaneously from drug overdoses. Characters: DI Susan Taylor, DI Dave Creegan
Location: Local Hospital
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Tattoo Clue Found — Investigators discover the 'let me go' stencil tattoo on each victim. Characters: DI Dave Creegan
Location: Hospital Morgue
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Creegan Home Attack — Creegan is left unconscious after a violent home invasion. Characters: DI Dave Creegan
Location: Creegan Residence
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Julie Carney Murder — Locum doctor Julie Carney commits another murder, shifting investigation focus. Characters: DI Susan Taylor, DI Dave Creegan
Location: Wales
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Burgess Electrocuting — Unstable cleaner Carl Burgess attempts to kill a patient before electrocuting himself. Characters: DI Dave Creegan
Location: Hospital Ward
Season 1: Amathus Game Resolution
The detectives uncover a violent online game forcing players to commit real crimes. A triple murder escalates the stakes, while internal team dynamics fracture as Kreitman confesses to a past killing. The season closes with the arrest of prime suspect Leonard Stoker and Kreitman's dismissal, leaving the team emotionally strained but operationally successful.
Key Events
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Burgess Electrocuting — Unstable cleaner Carl Burgess attempts to kill a patient before electrocuting himself. Characters: DI Dave Creegan
Location: Hospital Ward
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Amathus Game Discovery — Investigation into horse attacks reveals a violent reality game called Amathus. Characters: DI Susan Taylor, DI Dave Creegan
Location: Internet Cafe
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Amathus Triple Murder — The next game level results in a triple murder, escalating urgency. Characters: DI Dave Creegan
Location: Crime Scene
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Kreitman Confession — Kreitman confesses to Creegan that he was responsible for Ronald Hinks' death. Characters: DI Dave Creegan
Location: Police Station
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Stoker Chase & Arrest — A high-speed chase leads to the arrest of prime suspect Leonard Stoker. Characters: DI Susan Taylor, DI Dave Creegan
Location: City Streets
Season 2: Serial Killer & War Crimes
A new serial killer sends murder reports to a journalist, leading to a hostage situation in the woods. Simultaneously, investigations into white body bags reveal connections to Bosnian war cleanup operations. The season escalates with a killer's rampage, culminating in the tragic shooting of a team member during a funeral shootout.
Key Events
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Serial Killer Reports — A serial killer begins sending detailed murder reports to a local journalist. Characters: DI Susan Taylor, DI Dave Creegan
Location: Newspaper Office
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Warehouse Body Discovery — Search yields another body, this time a local MP, proving the killer's pattern. Characters: DI Dave Creegan
Location: Industrial Warehouse
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Laney Surveillance — Creegan suspects journalist Laney is the killer and places him under surveillance. Characters: DI Susan Taylor, DI Dave Creegan
Location: Cafe Exterior
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Taylor Kidnapped — Laney kidnaps Taylor and takes her back to the woods shack. Characters: DI Susan Taylor, DI Dave Creegan
Location: Woods Shack
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White Body Bag Trail — Investigation reveals bodies delivered in white bags linked to Bosnian war cleanup. Characters: DI Susan Taylor, DI Dave Creegan
Location: Victim Homes
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Keller Rampage — Keller goes on a one-man rampage, attacking his wife, partner, and attending a funeral. Characters: DI Dave Creegan
Location: Suburban Streets
Season 2: Child Trafficking Ring
The focus shifts to a child snatching case that uncovers an international paedophile ring. Taylor goes undercover in Romania while Creegan manages domestic suspects. The season peaks with the devastating murder of Annie Jordan in Creegan's car, forcing him to choose between personal vengeance and legal justice.
Key Events
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Colleague Shot Down — During a shootout, a team member is gunned down by Keller. Characters: DI Susan Taylor, DI Dave Creegan
Location: Funeral Grounds
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Child Snatching — A young boy is snatched from his parents' garden, leading to a trafficking ring. Characters: DI Susan Taylor, DI Dave Creegan
Location: Back Garden
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Annie Jordan Claim — Annie Jordan claims to be the boy's biological mother and reveals international dealer links. Characters: DI Susan Taylor, DI Dave Creegan
Location: Police Interview Room
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Romania Undercover — Taylor travels to Romania undercover to collect a child and dismantle the ring. Characters: DI Susan Taylor
Location: Romania
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Annie Jordan Murder — Annie Jordan is shot and murdered in Creegan's car by Mark Hawkins. Characters: DI Dave Creegan
Location: Police Car
Season 3: Innocence & Arsonist
Creegan takes sick leave after a released convict confesses to new murders, but Taylor recaptures him. The team faces the murder of a close colleague, testing their moral boundaries. A new arsonist linked to a 1989 psychiatric hospital fire emerges, leading to a tense hostage rescue and the uncovering of a killer in disguise.
Key Events
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Creegan Sick Leave — Creegan takes sick leave after a released convict he helped convict confesses to new murders. Characters: DI Dave Creegan
Location: Home
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Suspect Recaptured — Taylor brings the suspect back into custody after murders resume. Characters: DI Susan Taylor
Location: Police Station
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Colleague Murdered — The killer murders a close colleague, devastating the team. Characters: DI Susan Taylor, DI Dave Creegan
Location: Hotel Exterior
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Arsonist Pattern — A serial killer burning victims to a crisp is linked to a 1989 psychiatric hospital fire. Characters: DI Susan Taylor, DI Dave Creegan
Location: Burnt Building
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Headteacher Found Dead — Fourth victim, headteacher Claire Logan, is discovered dead. Characters: DI Susan Taylor, DI Dave Creegan
Location: School Grounds
Season 3: Team Integration & Resolution
Junior DC Martin Simmons joins the team, creating immediate friction with Creegan. Taylor and Creegan navigate grief, risk assessment conflicts, and operational safety concerns. The season concludes with the resolution of the arsonist case, finalizing the detectives' long-standing partnership and reflecting on the emotional toll of their careers.
Key Events
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Disguise Uncovered — Investigators track the killer to a disused hospital where she has another victim ready. Characters: DI Susan Taylor, DI Dave Creegan
Location: Lincolnshire Hospital
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Hostage Rescue — Creegan puts himself in direct danger to secure the safety of the hostage. Characters: DI Dave Creegan
Location: Hospital Ward
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Case File Closure — Final reports are filed, marking the resolution of the season's complex investigations. Characters: DI Susan Taylor, DI Dave Creegan
Location: Police Station
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Team Debrief — The team processes the emotional toll and operational outcomes of their cases. Characters: DI Susan Taylor, DI Dave Creegan
Location: Meeting Room
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Series Narrative Closure — The overarching narrative concludes with the detectives reflecting on their journey. Characters: DI Susan Taylor, DI Dave Creegan
Location: Police Station
Follow the exploits of the Organized and Serial Crime Unit (OSC). Maverick Detective Inspector Dave Creegan is the newest member of the unit, an elite, rapid-response crime squad. The OSC uses their diverse crime-fighting skills to bring justice to society.