Every season of 20/20 on ID ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of 20/20 on ID!

A boy becomes the center of a rivalry between two teenage girls in the opener of the crime documentary series.

Teens Who Murder

Two missing daughters unite two fathers, who become citizen detectives to find them.

A Parent's Anguish

The crimes of Marcus Wesson, who controlled his family like a cult before their bloody demise, are detailed.

Portrait of a Madman

A young military wife and two of her daughters are murdered in their own home, and one toddler is spared from the killings.

Witness

The crimes of Philippe Padieu, who was convicted for knowingly exposing his unsuspecting lovers to HIV.

Dangerous Affairs

An Internet prank turns deadly on Long Island.

Deadly Choices

A minister's wife is found dead in her home. Police question whether it was suicide or murder, and the minister's mistress could be the key to solving the mystery.

The Preacher's Hidden Life

The story of Rebecca Babcock, whose mother, Diane Downs, shot three of Rebecca's siblings in 1983, killing one of them

Blood Ties

Two fathers travel to Italy to be reunited with their sons, but their efforts are impeded.

The Lost Boys

The 2006 killings of Wayne and Sharmon Stock in Murdock, Neb., and the subsequent investigation are discussed.

Who's Guilty?

The ordeal of a high-school teacher who was kidnapped—along with her daughter—by a deranged former student is detailed.

Mind Games: Math Teacher

The case of Etan Patz, a 6-year-old boy who went missing in New York City in 1979, is discussed.

Missing Forever: What Really Happened to Etan Patz

The murder of 15-year-old Leah Freeman, who was slain in Coquille, Ore., in 2000, is investigated.

The Murder Room

Profiling Kelley Cannon, who was convicted of killing her husband in 2008.

Kelley Cannon

A tale of love gone awry for a real-estate agent and a lounge owner culminates in murder.

Burning Bed

A young man's identity is stolen by his estranged father; a murder case in which an 18-year-old woman killed her father is detailed.

Unforgivable Fathers

Two tales of love gone wrong from Seattle and Missouri are detailed.

Love and Lies

Girl drowns in a pool; her mother becomes a target, and this supposed accident becomes more

Murderous Love

A report on two separate murder cases---one in Indiana, another in Edmonton---that investigators suspect were inspired by the TV drama "Dexter."

Hidden Identity

The discovery of a woman's naked and beaten body begins a mystery of dead ends, but a determined investigator refuses to give up on his search for the truth.

The Vanishing Blonde, part 1

The Vanishing Blonde, part 2

Investigation Discovery has made a home for award-winning investigative reporting from all three major broadcast networks. Joining CBS News' "48 Hours" and "60 Minutes" and NBC News' "Dateline," "20/20 on ID" delivers a collection of stories about ordinary people facing extraordinary circumstances. It's hosted by ABC News correspondent John Quiñones, and features the reporters of ABC News' acclaimed series "20/20" who dig beneath the headlines to reveal stories of victims, their families, and the search for truth and justice.

The Best Seasons of 20/20 on ID

The Best Seasons of 20/20 on ID

Season 1