Bloodline Detectives focuses on familial DNA investigation, a search technique which uses genetic material from relatives to track down a suspect to solve violent crimes. Each episode shows detectives from all over the world solving cold cases by using the DNA of family members and how that additional DNA information is revolutionising genetic profiling to solve criminal cases.

Season 1 Episode 16 - Town Path Predator

In 2001, a young couple were brutally assaulted in Salisbury, Wiltshire. Over a decade later, new DNA technology helped lead investigators to the attacker. Air Date : 20th-Feb-2021

Season 1 Episode 1 - Motorway Killer

In March 2003, a lorry driver was found dead behind the wheel in Camberley, England. Police gambled on the revolutionary technique of familial DNA analysis. Air Date : 23rd-Apr-2020  Read More

Season 1 Episode 2 - Unrighteous Act

In 1976, a woman was left for dead in her home in southern California. Despite a major manhunt, the violent killer avoided detection for over four decades. Air Date : 30th-Apr-2020  Read More

Season 1 Episode 3 - Deadly Desire

On Valentines' Day 2007, police in Southern California were called to a particularly violent murder scene. Advances in forensic genealogy finally solved the case. Air Date : 7th-May-2020  Read More

Season 1 Episode 4 - Scottsdale Spree Shooting

In 2018, two paralegals were shot dead whilst at work in Scottsdale, Arizona. Four more victims were linked to the killing - who was the serial killer? Air Date : 14th-May-2020  Read More

Season 1 Episode 5 - Blood Bath

In 1984, a young woman's body was discovered in a lane close to her home in Bath, England. How did police eventually track down the perpetrator of this heinous attack? Air Date : 21st-May-2020  Read More

Season 1 Episode 6 - Road Trip to Hell

After being reported missing, a young couple's bodies were discovered more than 60 miles apart. Dedicated investigators set out to find their killer. Air Date : 28th-May-2020  Read More

Season 1 Episode 7 - March Massacre

In 1979, two young boys came home from school to find their mother's dead body in the living room. Investigators set out to track down the killer with no firm leads. Air Date : 4th-Jun-2020  Read More

Season 1 Episode 8 - Murder in the Snow

After a young woman was found beaten to death in Wisconsin in 1984, the killer evaded detection for decades. However, a revolutionary DNA method later revealed his identity. Air Date : 11th-Jun-2020  Read More

Season 1 Episode 9 - Ice Cold Murder

The murder of a respected teacher brutally attacked in her Pennsylvania home. Her death shocked the community, though it took 27 years for dedicated investigators trace her killer. Air Date : 18th-Jun-2020  Read More

Season 1 Episode 10 - Llandarcy Serial Killer

In 1973, two schoolgirls were found murdered in the Welsh village of Llandarcy. The killer's identity would remain a mystery until 2002. Air Date : 7th-Jan-2021  Read More

Season 1 Episode 11 - Sheeps Flat Murder Mystery

In 1982, a woman is found shot to death near Lake Tahoe. 37 years later, ground-breaking technology would help identify both the victim and the killer. Air Date : 14th-Jan-2021  Read More

Season 1 Episode 12 - Carnage in Cardiff

In 1988, police discover the mutilated body of Lynette White. 25 years later, a ground-breaking DNA technique would finally lead detectives to the killer. Air Date : 21st-Jan-2021  Read More

Season 1 Episode 13 - The Rockville Horror

In 1994, 42-year-old Le Bich-Thuy is found dead next to her home. Decades later, DNA and genealogy technology allow detectives to track down the killer. Air Date : 28th-Jan-2021  Read More

Season 1 Episode 14 - A Life Stolen

69-year-old Evelynne Derricott is found brutally murdered in 2011. After the case goes cold, new DNA technology eventually leads detectives to the truth. Air Date : 4th-Feb-2021  Read More

Season 1 Episode 15 - Walking Nightmare

In 1986, in Kent, a teenage girl is on her way to the shops when she is attacked and sexually assaulted. Decades later, new DNA technology reveals the perpetrator. Air Date : 11th-Feb-2021  Read More

Season 1 Episode 16 - Town Path Predator

In 2001, a young couple were brutally assaulted in Salisbury, Wiltshire. Over a decade later, new DNA technology helped lead investigators to the attacker. Air Date : 20th-Feb-2021  Read More

Season 1 Episode 17 - The Murder of Tangie Sims

In Colorado, in 1996, a young woman's body was found in an alley. After the case goes cold, advancements in genetic technology lead police to the killer. Air Date : 27th-Feb-2021  Read More

Season 1 Episode 18 - The Williamsburg Rapist

In 2001, a student is attacked in Williamsburg, Virginia and months later the attacker strikes again. Finally, new DNA technology reveals the perpetrator. Air Date : 3rd-Mar-2021  Read More

Season 1 Episode 19 - The Murder of Helene Pruszynski

In 1980, a young woman disappears and her body is discovered shortly after. Almost 40 years later, new DNA technology reveals the attacker. Air Date : 13th-Mar-2021  Read More

Season 1 Episode 20 - The Clearfield Rapist

A series of brutal and terrifying sexual assaults occur across northern Utah and Wyoming. 17 years later, new DNA technology reveals the perpetrator. Air Date : 20th-Mar-2021  Read More