Season 1
Episode
1
Episode
2
Episode
3
Episode
4
Episode
5
Episode
6
Episode
7
Episode
8
Episode
9
- Ice Cold Murder
Episode
10
- Llandarcy Serial Killer
Episode
11
Episode
12
Episode
13
- The Rockville Horror
Episode
14
Episode
15
Episode
16
Episode
18
- The Williamsburg Rapist
Episode
19
- The Murder of Helene Pruszynski
Episode
20
- The Clearfield Rapist
Season 2
Season 3
Episode
1
- Date Night Murder in Michigan
Episode
2
- The Greeley Rapist
Episode
3
- Carla's Last Valentines
Episode
4
- Last Seen At Dairy Queen
Episode
5
- The Coat Hanger Killer
Episode
6
- The Mystery of the Headphones
Episode
7
- Christmas Tree Lady
Episode
8
- Little Miss Nobody
Episode
9
- The Slaying of Sylvia Quayle
Episode
10
- Valentine's Day Murder
Bloodline Detectives
Interviewswithfamilymembers,police,andotherswhohelpsolvecoldcasesbytheuseofFamilialDNA.WhenDNAisleftatcrimescene,andtheusualwaysofidentifyingthesuspectleadsnowhere,FamilialDNAcomesintoplay.FamilialDNAistakingtheDNAfromthecrimesceneandusingDNAthatpeoplehavesubmittedtogenealogysitestoseeifthereissomeonewhoisaclosematch.Fromtheregenealogistcanfigureoutwhothesuspectshouldbe,andpolicecanthenmakeanarrest.PiersGibbonisthenarratorfortheshow.WrittenbyCDR