Documentary•Crime

The Best Seasons of Bloodline Detectives

Every season of Bloodline Detectives ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Bloodline Detectives!

Binge this in Unknown•Peaking at 8.5/10

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

Airs on

TLC UK discovery+FilmRise True Crime

Season 3

20 Episodes

First Aired: Oct 2022

8.0/ 10

Average Rating

Best episodeE8 · Little Miss Nobody 8.5

Season 6

20 Episodes

First Aired: Sep 2025

7.9/ 10

Average Rating

Best episodeE19 · A Good Deed Punished 8.0

Season 2

20 Episodes

First Aired: Oct 2021

7.6/ 10

Average Rating

Best episodeE20 · Remembering Stevie 8.4

Other Seasons

Season 4

20 Episodes

First Aired: Sep 2023

7.5/ 10

Average Rating

Best episodeE14 · Double Homicide in the OC 8.0

Season 5

20 Episodes

First Aired: Sep 2024

7.5/ 10

Average Rating

Best episodeE8 · Justice for Krista 8.2

Season 1

20 Episodes

First Aired: Apr 2020

7.1/ 10

Average Rating

Best episodeE20 · The Clearfield Rapist 7.7