Bloodline Detectives backdrop
Bloodline Detectives poster
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Bloodline Detectives

7.7
5 seasons
100 episodes
Returning Series
Documentary
Crime

Plot Summary

Detectives and forensic experts recount the most extraordinary cold cases that were solved using the revolutionary technique of familial DNA testing.

First Aired:April 23, 2020
Last Aired:April 2, 2025
Episode Runtime:Unknown
Networks:
TLC UK, discovery+

Where to watch free (US)

Hoopla
Plex
Plex Channel
Fawesome
The Roku Channel
Pluto TV
Amazon Prime Video Free with Ads
Tubi TV

Seasons (5)

Season 1

Season 1

20 episodes

Aired: 2020

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 2

Season 2

20 episodes

Aired: 2021

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.

Season3

Season3

20 episodes

Aired: 2022

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 4

Season 4

20 episodes

Aired: 2023

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 5

Season 5

20 episodes

Aired: 2024

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.