Season
Season 6 Episode
- Season 2 Under The Desert Sky
- Season 2 The Officer's Wife
- Season 2 The Eastlake Conspiracy
- Season 2 A Novel Defense
- Season 2 Smoke And Mirrors
- Season 2 Somebody's Daughter
- Season 2 The Last Dance
- Season 2 Return to the Lonely Road
- Season 2 The Man Who Talked to Dogs
- Season 2 Out of the Darkness
- Season 2 Justice for Nikki
- Season 2 House of Secrets
- Season 2 The Black Widow of Lomita
- Season 2 The Pink Gun Mystery
- Season 2 Even the Devil Went to Church
- Season 2 The Day Jennifer Disappeared
- Season 2 In the Dead of Night
- Season 2 A Promise to Helene
- Season 2 Death of a Golden Girl
- Season 2 Secrets From the Grave
- Season 2 Fallen
- Season 2 The Box
- Season 2 The Creek
- Season 2 Mystery on Blood Mountain
- Season 2 The Betrayal of Sarah Stern
- Season 2 The Dead of Night
- Season 2 Deadly Valentine
- Season 2 Down the Back Staircase
- Season 2 The Ranch
- Season 2 What Happened to Amy?
- Season 2 The Secret of Spirit Lake
- Season 2 The Plan
- Season 2 The Haunting
- Season 2 Internal Affairs
- Season 2 Return to Manitowoc County
- Season 2 Twisted
- Season 2 Good & Evil
- Season 2 The House
- Season 2 Breakout
- Season 2 Family Affair
- Season 2 The Women and Dirty John
- Season 2 Open Water
- Season 2 The Silhouette
- Season 2 The Sting
- Season 2 Deadly Desire
- Season 2 Plot Twist
- Season 2 The Life and Death of Princess Diana
- Season 2 The Last Dive
Dateline: Unforgettable - Season 2 Episode 18 A Promise to Helene
7.00 48 minutes A college student is found murdered and the case sits cold for nearly 40 years. Josh Mankiewicz reflects on the vow that keeps the case alive and the innovative method used to catch the killer.
