Bloodline Detectives (2020)
- Genre: Documentary, Crime
- First Air Date: 2020-04-23
- Last Air Date: 2024-11-06
- Total Seasons: 5
- Total Episodes: 90
- Status: Returning Series
- Production Country: United Kingdom
- Network: TLC UK, discovery+
Detectives and forensic experts recount the most extraordinary cold cases that were solved using the revolutionary technique of familial DNA testing.
You can now watch Bloodline Detectives online on the following streaming providers in the United States.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Motorway Killer | 2020-04-23 | 60 min |
| Season 1 | Episode 2 | Unrighteous Act | 2020-04-30 | 60 min |
| Season 1 | Episode 3 | Deadly Desire | 2020-05-07 | 60 min |
| Season 1 | Episode 4 | Scottsdale Spree Shooting | 2020-05-14 | 60 min |
| Season 1 | Episode 5 | Blood Bath | 2020-05-21 | 60 min |
| Season 1 | Episode 6 | Road Trip to Hell | 2020-05-28 | 60 min |
| Season 1 | Episode 7 | March Massacre | 2020-06-04 | 60 min |
| Season 1 | Episode 8 | Murder in the Snow | 2020-06-11 | 60 min |
| Season 1 | Episode 9 | Ice Cold Murder | 2020-06-18 | 60 min |
| Season 1 | Episode 10 | Llandarcy Serial Killer | 2021-01-07 | 60 min |
| Season 1 | Episode 11 | Sheeps Flat Murder Mystery | 2021-01-14 | 60 min |
| Season 1 | Episode 12 | Carnage In Cardiff | 2021-01-21 | 60 min |
| Season 1 | Episode 13 | The Rockville Horror | 2021-01-28 | 60 min |
| Season 1 | Episode 14 | A Life Stolen | 2021-02-04 | 60 min |
| Season 1 | Episode 15 | Walking Nightmare | 2021-02-11 | 60 min |
| Season 1 | Episode 16 | Town Path Predator | 2021-02-18 | 60 min |
| Season 1 | Episode 17 | Murder of Tangie Sims | 2021-02-25 | 60 min |
| Season 1 | Episode 18 | The Williamsburg Rapist | 2021-03-04 | 60 min |
| Season 1 | Episode 19 | The Murder of Helene Pruszynski | 2021-03-13 | 60 min |
| Season 1 | Episode 20 | The Clearfield Rapist | 2021-03-20 | 60 min |
| Season 2 | Episode 1 | Body in the Staircase | 2021-10-28 | 60 min |
| Season 2 | Episode 2 | Sacrilege in Sacramento | 2021-11-04 | 60 min |
| Season 2 | Episode 3 | The Montana Murders | 2021-11-11 | 60 min |
| Season 2 | Episode 4 | The Night Visitor | 2021-11-18 | 60 min |
| Season 2 | Episode 5 | The Abductor | 2021-11-25 | 60 min |
| Season 2 | Episode 6 | Attacks in Alameda | 2021-12-02 | 60 min |
| Season 2 | Episode 7 | The Murder of Siobhan McGuinness | 2021-12-09 | 60 min |
| Season 2 | Episode 8 | Brute of Bridgewater | 2021-12-16 | 60 min |
| Season 2 | Episode 9 | Mother Mojave | 2021-12-23 | 60 min |
| Season 2 | Episode 10 | San Bernadino Bodies | 2021-12-30 | 60 min |
| Season 2 | Episode 11 | Episode 11 | 2022-07-21 | 60 min |
| Season 2 | Episode 12 | Episode 12 | 2022-07-28 | 60 min |
| Season 2 | Episode 13 | Episode 13 | 2022-08-04 | 60 min |
| Season 2 | Episode 14 | Episode 14 | 2022-08-11 | 60 min |
| Season 2 | Episode 15 | Episode 15 | 2022-08-18 | 60 min |
| Season 2 | Episode 16 | A Family Torn Apart | 2022-08-25 | 60 min |
| Season 2 | Episode 17 | San Bernardino Bodies | 2022-09-01 | 60 min |
| Season 2 | Episode 18 | Episode 18 | 2022-09-08 | 60 min |
| Season 2 | Episode 19 | Episode 19 | 2022-09-15 | 60 min |
| Season 2 | Episode 20 | Episode 20 | 2022-09-22 | 60 min |
| Season 3 | Episode 1 | Date Night Murder in Michigan | 2023-09-11 | 60 min |
| Season 3 | Episode 2 | The Greeley Rapist | 2023-09-12 | 60 min |
| Season 3 | Episode 3 | Carla's Last Valentines | 2023-09-13 | 60 min |
| Season 3 | Episode 4 | Last Seen at Dairy Queen | 2023-09-14 | 60 min |
| Season 3 | Episode 5 | The Coat Hanger Killer | 2023-09-15 | 60 min |
| Season 3 | Episode 6 | The Mystery of the Headphones | 2023-09-18 | 60 min |
| Season 3 | Episode 7 | Christmas Tree Lady | 2023-09-19 | 60 min |
| Season 3 | Episode 8 | Little Miss Nobody | 2023-09-20 | 60 min |
| Season 3 | Episode 9 | The Slaying of Sylvia Quayle | 2023-09-21 | 60 min |
| Season 3 | Episode 10 | Valentine's Day Murder | 2023-09-22 | 60 min |
| Season 3 | Episode 11 | The Mystery of the Parks | 2023-09-25 | 60 min |
| Season 3 | Episode 12 | Murder by the Base | 2023-09-26 | 60 min |
| Season 3 | Episode 13 | The Murder of Mary Scott | 2023-09-27 | 60 min |
| Season 3 | Episode 14 | The Schoolbag in the Road | 2023-09-28 | 60 min |
| Season 3 | Episode 15 | Her Last New Years Eve | 2023-09-29 | 60 min |
| Season 3 | Episode 16 | Dancing with Death | 2023-10-02 | 60 min |
| Season 3 | Episode 17 | The McLeary Rapist | 2023-10-03 | 60 min |
| Season 3 | Episode 18 | The Mint Box Murder | 2023-10-04 | 60 min |
| Season 3 | Episode 19 | Delta Dawn | 2023-10-05 | 60 min |
| Season 3 | Episode 20 | Michelle Wyatt | 2023-10-06 | 60 min |
| Season 4 | Episode 1 | Carol Sue Klaber | 2023-10-11 | 60 min |
| Season 4 | Episode 2 | Nancy Bennallack | 2023-10-18 | 60 min |
| Season 4 | Episode 3 | Norcal Rapist | 2023-10-25 | 60 min |
| Season 4 | Episode 4 | Robin Brooks | 2023-11-01 | 60 min |
| Season 4 | Episode 5 | Donna Hyatt | 2023-11-08 | 60 min |
| Season 4 | Episode 6 | Isabel Sanchez Bernal | 2023-11-15 | 60 min |
| Season 4 | Episode 7 | Murder By I-59 | 2023-11-22 | 60 min |
| Season 4 | Episode 8 | The Murder of Little Marise | 2023-11-29 | 60 min |
| Season 4 | Episode 9 | The South Lake Tahoe Strangler | 2023-12-06 | 60 min |
| Season 4 | Episode 10 | The Huntington Beach Body | 2023-12-13 | 60 min |
| Season 4 | Episode 11 | Mommy Has Been Murdered | 2023-12-20 | 60 min |
| Season 4 | Episode 12 | The Phoenix Canal Killer | 2023-12-27 | 60 min |
| Season 4 | Episode 13 | The Killer Realtor | 2024-01-03 | 60 min |
| Season 4 | Episode 14 | Double Homicide in the OC | 2024-01-10 | 60 min |
| Season 4 | Episode 15 | The Mississippi Rapist | 2024-01-17 | 60 min |
| Season 4 | Episode 16 | Episode 16 | 2024-01-24 | 60 min |
| Season 4 | Episode 17 | Episode 17 | 2024-02-21 | 60 min |
| Season 4 | Episode 18 | Episode 18 | 2024-02-28 | 60 min |
| Season 4 | Episode 19 | Episode 19 | 2024-03-06 | 60 min |
| Season 4 | Episode 20 | Episode 20 | 2024-03-13 | 60 min |
| Season 5 | Episode 1 | The Body in the Blanket | 2024-09-04 | 60 min |
| Season 5 | Episode 2 | Evil Angel | 2024-09-11 | 60 min |
| Season 5 | Episode 3 | The Book Store Murder | 2024-09-18 | 60 min |
| Season 5 | Episode 4 | The McClintock Park Murders | 2024-09-25 | 60 min |
| Season 5 | Episode 5 | Strangled in the Sand | 2024-10-02 | 60 min |
| Season 5 | Episode 6 | Terror in Garden Grove | 2024-10-09 | 60 min |
| Season 5 | Episode 7 | The Runaway Murder | 2024-10-16 | 60 min |
| Season 5 | Episode 8 | Justice for Krista | 2024-10-23 | 60 min |
| Season 5 | Episode 9 | The Imposter Rapist | 2024-10-30 | 60 min |
| Season 5 | Episode 10 | The Schoolteacher Murder | 2024-11-06 | 60 min |