Every season of Dateline: Unforgettable ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Dateline: Unforgettable!

Secret Lives

Mystery in Orange County

The Client

Lauren's Promise

The Grudge

Conduct Unbecoming

And Then There Were Three

Collision

Voices for Vanessa

She Never Left

Into the Night

A Texas Twist

At the Bottom of the Lake

The Goldfinger Mystery

Shannon's Story

The Perfect Guy

Frantic

Finding Venus

The Black Box

Deliberate Evil

At The Edge of Town

The Interrogation

Unchecked Evil

Mystery at Heath Bar Farm

The Collector

Under The Desert Sky

The Officer's Wife

The Eastlake Conspiracy

A Novel Defense

Smoke And Mirrors

Somebody's Daughter

The Last Dance

Return to the Lonely Road

The Man Who Talked to Dogs

Out of the Darkness

Justice for Nikki

House of Secrets

The Black Widow of Lomita

The Pink Gun Mystery

Even the Devil Went to Church

The Day Jennifer Disappeared

In the Dead of Night

A Promise to Helene

Death of a Golden Girl

Secrets From the Grave

Fallen

The Box

The Creek

Mystery on Blood Mountain

The Betrayal of Sarah Stern

The Dead of Night

Deadly Valentine

Down the Back Staircase

The Ranch

What Happened to Amy?

The Secret of Spirit Lake

The Plan

The Haunting

Internal Affairs

Return to Manitowoc County

Twisted

Good & Evil

The House

Breakout

Family Affair

The Women and Dirty John

Open Water

The Silhouette

The Sting

Deadly Desire

Plot Twist

The Life and Death of Princess Diana

The Last Dive

On a Dark, Deserted Highway

Siren Song

The Woman Who Couldn't Scream

The Devil Was Watching

Left for Dead

Point Blank

Complicated

The Window

The Evil That Watches

The Murder of Lorenzen Wright

A Walk in the Rain

What Happened in Vegas

Lonestar Obsession

Twisted Faith

Sex, Lies & Murder

In A Lonely Place

The Music Box

Detective Story

The Secret Life of the Homecoming Queen

Kill Switch

Window of Opportunity

Killer Role

Safari Story

The Favorite Son

The Trial of Lori Vallow Daybell

The Bridge

The Life She Wanted

A series of reports chosen by "Dateline" correspondents that answers the question they most often get asked — what their most memorable story is and why.

The Best Seasons of Dateline: Unforgettable

The Best Seasons of Dateline: Unforgettable

Season 4

Season 1

Season 3

Other Seasons

Season 2

Season 5

Season 6

Season 7