In the first episode, the disappearance of 18-year-old Mona Blades.

Detectives track the last known movements of missing father and grandfather. Do Trieu, using the latest investigative techniques and cultural insight.

Detectives divulge never before released forensic information and use the latest DNA technology to hunt for the killer of 29-year-old Kayo Matsuzawa.

Detectives painstakingly review every aspect of the 2002 disappearance of Dunedin mother of three, Tuitania Barclay and come to the ultimate conclusion.

Detectives reveal secrets from the grave of Jane Furlong - the 17-year-old mother who went missing from Auckland and whose remains were discovered 19 years later.

Detectives use blowfly larvae, sea lice and tide charts to unravel the mystery surrounding the execution-style murder of 25-year-old David Robinson.

An FBI-trained criminal profiler and a behavioural psychologist help to identify the killer of 22-year-old Katrina Jefferies, whose body was found in an Auckland reserve in 2005.

For the first time, the Cold Case detectives investigate the 1984 Wellington Trades Hall bombing, and reveal compelling information about the killer device that took the life of Ernie Abbott.

Tonight, alarming details in the lead up to 88-year-old Russell Allison's death in a suspicious house fire.

Join our "Cold Case" detectives as they reveal the last moments of pizza restaurant owner Jordan Voudouris' life and never seen before CCTV images in the hunt for his killer.

Joined by the police victim recovery dogs and the specialist search group, our team of highly experienced "Cold Case" detectives track the last known movements of homicide victim Bevan Wright and search a potential burial site.

Retired Detective Inspector Graham Bell joins our highly experienced "Cold Case" investigators as they review the sinister disappearance of Joe Chatfield, who vanished from Auckland over 30 years ago.

Detectives try to untangle a web of lies and misinformation to discover what happened to 34-year-old Timothy Pridding, who vanished without a trace from Dunedin in 1994.

Our detectives reveal chilling details of the brutal assault and deliberately lit fire that killed grandmother Roma Joseph, and the blood smears that may identify her killer.

After forty years, detectives uncover an opportunity to find the killer of 6-year-old Alicia O'Reilly, who was found raped and murdered in her own bed. WARNING: Deals with the issue of rape.

Season Finale: The head of the NZ Police's Missing Person's Unit helps review the mysterious disappearance of Richard Hinkley, who was last heard from on Christmas Day, 2015.

Amber-Lee was last seen at a house in Kingston on 17 October 1992. The 2-year-old’s disappearance is one of New Zealand’s most enduring mysteries.

Four years since Eddie Peters was found viciously beaten and later died in the hospital, no one has been held accountable but detectives are convinced the community holds answers to that night.

Jessica Boyce was 27 when she vanished from Marlborough. In this special episode, Police investigating her homicide are releasing new information for the first time in the hope of finding answers.

In the early hours of Good Friday 1980, Simon Buis was found dead in Auckland’s Gribblehurst Park. 4 decades on, Police are determined to find who was responsible for killing the 54-year-old father.

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