Episode 1 - Witness

A family slaughtered in their home, with only one witness left behind.

Episode 2 - Bigamist Bride

Men allegedly scammed by so-called "Military Mistress" speak out.

Episode 3 - Islam: Questions and Answers

Diane Sawyer reports in-depth look at Islam in America and around the world.

Episode 4 - Catfish A Cyber Romance

Nev Schulman, discusses his documentary-thriller "Catfish".

Episode 5 - Miracle at the Mine

A special edition of "20/20" goes inside the rescue mission in Chile.

Episode 6 - Cold Case: What Happened to Oregon Teen?

A new police chief makes it his personal goal to find a teenager's killer.

Episode 7 - Bullied To Death: Victims' Stories

Bullying is an epidemic among young people.

Episode 8 - Charity Scam Exposed

Criminals use the plight of the plight of ill children to rip off millions.

Episode 9 - The New Face of Heroin Addiction

The lives of three teenagers addicted to heroin and their struggle with sobriety.

Episode 10 - Child Sex-Abuse Report

Two people, whose testimony as children sent their father to prison for sexual abuse, find out that they have been manipulated into perjuring themselves; their father, released after 20 years, offers them forgiveness.

Episode 11 - Better Business Bureaus

Brian Ross investigates practices of Better Business Bureaus around the U.S.

Episode 12 - Cher

Cher is interviewed by Cynthia McFadden. Also: Ashleigh Banfield reports on a romantic rivalry among teen girls in Pinellas Park, Fla., that led to murder in 2008.

Episode 13 - A Barbara Walters Special: A Thanksgiving Visit With President and Mrs. Obama

Episode 14 - Amanda Lewis

A young girl drowns in her backyard pool, and her young step brother blames his mother after police rule it an accident. However, the mother contends that her son was coached and his inconsistent testimony of the events surrounding the drowning cannot be trusted. She is eventually convicted of first-degree murder by a jury in less than two hours, though she continues to appeal her case.

Episode 15 - 7 Wonders

Seven different people with extraordinary abilities and hobbies are profiled, including a spider-like man who scales buildings, a young singer with talent beyond her years, and a real-life mermaid.

Episode 16 - After Midnight

Man Calls Police Claiming Wife Shot Herself in the Head; Police Suspect Man's Wife Didn't Commit Suicide, But Was Murdered

Episode 17 - The Clique

A social pariah turned high school "it" girl is accused of shooting four women with the aid of her criminal boyfriend. She claims the manipulative man is the true culprit, while prosecutors insist she is ultimately responsible.

Episode 18 - 20/20 Reports

Look for signs a mentally disturbed person may become a killer; investigation into the Peace Corps; interview with political pundit Ron Reagan, Jr.

Episode 19 - 20/20 Reports

Look for signs a mentally disturbed person may become a killer; investigation into the Peace Corps; interview with political pundit Ron Reagan, Jr.

Episode 20 - The Congresswoman and the Astronaut

Interview with Capt. Mark Kelly, husband of Rep. Gabrielle Giffords (D-Ariz.).

Episode 21 - 20/20 Reports

Authorities continue to investigate the vicious murder of a recently divorced school nurse who was a mother of five; Vervet monkeys raid outdoor bars in the Caribbean.

Episode 22 - Mother's Day Murder

The murder of a woman on Mother's Day rocks a small town to its core, and the many suspects and total lack of an arrest only adds to the local hysteria. After more than a year and a half, local police continue to investigate, but still offer no answers.Later, monkeys who partake in alcoholic beverages in the Caribbean are profiled.

Episode 23 - Street Kids: A Year on the Road

Teenage homelessness in America is investigated, and Chris Cuomo focuses on telling the harrowing stories of a few select young people who let the cameras follow them through their fight for survival.

Episode 24 - Wrong Turn: The Kati Kim Story

A couple and their two young children struggle to survive in their car when they take take a wrong turn down a remote mountain logging road In Oregon. With frostbite, bears, and a diminishing food supply threatening the family's survival, the husband is forced to set out on foot to find help.

Episode 25 - Astronaut Love Triangle: The Soap Opera Behind the Space Shuttle

Air Force Capt. Colleen Shipman talks about being attacked by astronaut Lisa Nowak; TV personality Dina Lohan talks about her daughter Lindsay's troubles with addiction.

Episode 27 - 20/20 Reports

The daughter's of a Utah doctor believe he is responsible for their mother's death.

Episode 28 - Life of Lies

A wealthy family man is suspected of killing his wife during her recovery from plastic surgery. Two of his own daughters soon take it upon themselves to investigate their mother's death and their father's possible responsibility. They uncover damning evidence, including a hidden affair, missing medications, and a string of false records. However, police are not initially concerned with anything but closing the case.

Episode 29 - Charlie Sheen: In His Own Words

Episode 31 - Carmina Salcido's Survival Story/Life WIth Gators and Crocs

First, Carmina Salcido (a former American Idol hopeful) helps tell her harrowing story involving her murderous father and his violent, homicidal rampage that left her family and others dead. After nearly being killed as a young child, she was adopted by an ultra-conservative family who kept her in the cultural dark for most of her childhood..Later, people who own crocodiles and alligators as pets are profiled.

Episode 32 - Disaster in the Pacific

A breaking news episode regarding the massive earthquake and subsequent tsunami that devastated Japan.

Episode 34 - 'Dexter' Fans Turned Killers?/Jennifer Hudson: "Idol" to "It Girl"

Two separate murders that may have been partially inspired by the hit television show "Dexter" are investigated. Also, actress and singer Jennifer Hudson is profiled and she opens up about a personal tragedy in her life.

Episode 36 - See What's Next

A successful real estate agent is found strangled and burned to death in her own home. Her boyfriend is suspect number one when evidence of arson is found on his clothing, although his defense team argues there is a lack of physical evidence.

Episode 37 - 20/20 Reports

Investigative reporting.

Episode 38 - William and Catherine: A Modern Fairytale

Barbara Walters discusses Prince William and Kate Middleton's romance and looks at exclusive home movies, photographs and interviews with their friends; wedding plans.

Episode 39 - A Barbara Walters Exclusive: Elton John and David Furnish

Episode 40 - A Special Edition of 20/20: The Royal Wedding: A Modern Fairytale

Part 1

Episode 41 - A Special Edition of 20/20: The Royal Wedding: A Modern Fairytale

Part 2

Episode 42 - Kill Shot: The Story Behind bin Laden's Death

The death of Osama bin Laden.

Episode 44 - Infomercial Nation

Informercial products are put to the test; interviews with celebrity spokespeople; the Arnold Schwarzenegger and Dominique Strauss-Kahn sex scandals.

Episode 45 - A Special Edition of 20/20: Reality Rule$: When TV Gets Real

Episode 46 - June 3, 2011

Episode 47 - June 8, 2011

Episode 48 - June 10, 2011

Episode 49 - June 17, 2011

Episode 50 - June 24, 2011

Episode 51 - July 8, 2011

Episode 52 - July 15, 2011

Episode 53 - Super Powers Super Humans

Episode 54 - July 22, 2011

Episode 55 - July 29, 2011

Episode 56 - August 5, 2011

Episode 57 - August 12, 2011

Episode 58 - August 19, 2011

Episode 59 - August 26, 2011

Episode 60 - September 2, 2011

Episode 61 - September 9, 2011

Episode 62 - September 16, 2011

Episode 63 - September 23, 2011

Episode 64 - September 30, 2011

Episode 65 - October 7, 2011

Episode 66 - October 14, 2011

Episode 67 - November 25, 2011