Season
- Season 1 2017-07-21
- Season 2 2018-02-16
- Season 3 2018-06-23
- Season 4 2018-07-13
- Season 5 2018-10-01
- Season 6 2019-01-05
- Season 7 2019-05-05
- Season 8 2019-10-18
- Season 9 2020-04-03
- Season 10 2021-03-01
- Season 11 2022-10-04
- Season 12 2024-01-10
- Season 13 2024-06-05
- Season 14 2024-11-06
- Season 15 2025-06-04
Season 15 Episode
- Season 9 The Disappearance of Sandi Johnson
- Season 9 12 Minutes on Elm Street
- Season 9 In the Middle of the Night
- Season 9 Missing Marie
- Season 9 Deadly Intent
- Season 9 A Bronx Tale
- Season 9 Deadly Denial
- Season 9 Mystery in South Beach
- Season 9 Circle Of Friends
- Season 9 Bad Blood
- Season 9 The Farm
- Season 9 Evil Was Waiting
- Season 9 Everything She Knew
- Season 9 The Landing
- Season 9 Unspeakable
- Season 9 The Watcher
- Season 9 Unraveled
- Season 9 The Figure in the Garage
- Season 9 A Cold December Morning
- Season 9 In Cold Blood
- Season 9 Vendetta
- Season 9 Deadly House of Cards
- Season 9 Footprint In the Dust
- Season 9 Death in the Driveway
- Season 9 Toxic Relations
- Season 9 Secrets of the Snake River
- Season 9 A Killing in Cottonwood
- Season 9 The Unusual Suspect
- Season 9 The Mystery Man
- Season 9 The Fugitive Millionaire
- Season 9 Deception
- Season 9 The Comic Book Murder
- Season 9 Up In Flames
- Season 9 The Motive
- Season 9 The Mansion on Ocean Boulevard
- Season 9 Evil Intent
- Season 9 Secrets on the Emerald Coast
- Season 9 Something Wicked
- Season 9 Mystery on the Mississippi
- Season 9 On the Outskirts of Town
- Season 9 The Ultimatum
- Season 9 The Good Husband
- Season 9 Double Lives
- Season 9 A Dangerous Man
- Season 9 The Mystery on Bridle Path
- Season 9 The Accused
Dateline: Secrets Uncovered - Season 9 Episode 21 Vendetta
8.10 43 minutes Beloved by his colleagues, Mark Hasse was a fearless prosecutor. He worked to put criminals behind bars and making enemies was a hazard of the job. He didn’t know it, but a killer was lurking and Mark wasn’t the only target.
