When college student Helene Pruszynski is found murdered, her case remains cold for nearly 40 years until a new detective uses an innovative method to catch the killer. Josh Mankiewicz reports.
| Title | Dateline - Season 29 Episode 9 : A Promise to Helene |
|---|---|
| Alternative Titles | Dateline NBC |
| Subtitle Available |
 ETC.
|
| First Air Date | 1992-03-31 |
| Last Air Date | 2026-01-16 |
| Number of Episodes | 914 |
| Number of Seasons | 34 |
| Genres | Crime, Documentary, |
| Networks | NBC, |
| Casts | |
| Plot Keywords | , |
Episodes List
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Dateline Season 29 :Episode 1 Trouble at the 7-11 Ranch Trouble at the 7-11 Ranch
2020-09-21Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 2 Left For Dead Left For Dead
2020-09-24Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 3 Tallahassee Trap Tallahassee Trap
2020-10-01Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 4 A Killer Role A Killer Role
2020-10-02Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 5 Lone Star Obsession Lone Star Obsession
2020-10-08Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 6 The Dead of Night The Dead of Night
2020-10-09Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 7 What Happened to Don Lewis What Happened to Don Lewis
2020-10-12Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 8 The Client: A New Look The Client: A New Look
2020-10-15Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 9 A Promise to Helene A Promise to Helene
2020-10-16Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 10 Even the Devil Went to Church Even the Devil Went to Church
2020-10-23Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 11 Return to Shalimar Way Return to Shalimar Way
2020-10-29Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 12 Hope Whispers Hope Whispers
2020-10-30Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 13 The Eastlake Conspiracy The Eastlake Conspiracy
2020-11-06Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 14 10 Minutes to Sunset 10 Minutes to Sunset
2020-11-13Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 15 Voices for Vanessa Voices for Vanessa
2020-11-19Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 16 Point Blank Point Blank
2020-11-20Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 17 Race for a Vaccine Race for a Vaccine
2020-12-03Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 18 Far from Spider Lake Far from Spider Lake
2020-12-04Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 19 Into the Night - Part 2 Into the Night - Part 2
2020-12-11Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 20 The Life and Death of Princess Diana The Life and Death of Princess Diana
2020-12-18Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 21 Journey for Justice Journey for Justice
2021-01-07Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 22 Open Water Open Water
2021-01-08Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 23 The Grudge The Grudge
2021-01-21Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 24 Night of the Summer Solstice Night of the Summer Solstice
2021-01-22Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 25 Lauren's Promise Lauren's Promise
2021-01-28Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 26 The Woman at the Bar The Woman at the Bar
2021-01-29Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 27 Shannon's Story Shannon's Story
2021-02-04Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 28 Death of a Hometown Hero Death of a Hometown Hero
2021-02-05Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 29 The Black Box (Repeat) The Black Box (Repeat)
2021-02-11Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 30 Broken Circle Broken Circle
2021-02-11Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 31 The Monster at Large The Monster at Large
2021-02-12Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 32 Collateral Damage Collateral Damage
2021-02-26Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 33 Return to the Landing Return to the Landing
2021-03-04Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 34 The Life She Wanted The Life She Wanted
2021-03-12Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 35 The Woman with No Name The Woman with No Name
2021-03-18Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 36 The Waiting Car The Waiting Car
2021-03-25Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 37 Mommy Doomsday Mommy Doomsday
2021-03-26Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 38 Sex, Lies, & Murder Sex, Lies, & Murder
2021-04-09Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 39 The Phone Call The Phone Call
2021-04-16Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 43 The Necklace The Necklace
2021-04-23Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 44 Killer Role Killer Role
2021-04-30Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 45 Window of Opportunity Window of Opportunity
2021-05-07Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 47 Secrets by the Bay Secrets by the Bay
2021-05-21Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 50 House of Horrors House of Horrors
2021-07-09Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
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Dateline Season 29 :Episode 51 The Fight for America's Soul The Fight for America's Soul
2021-05-11Dateline NBC, or simply Dateline, is a weekly American television newsmagazine series. It was previously the network's flagship newsmagazine, but now...
