The BEST episodes of 20/20 season 42

#1 - 30 Years Searching

Season 42 - Episode 44 - Aired 9/20/2019

Detectives use DNA evidence to solve a cold case involving the murder of an 18-year-old woman.

#2 - My Mother's Sins

Season 42 - Episode 30 - Aired 3/22/2019

A woman shoots her three young children, seriously injuring two and killing one.

#3 - Shot in the Dark

Season 42 - Episode 2 - Aired 9/14/2018

A high school cheerleader and football player's tumultuous relationship; Teen found dead in her bed from a gunshot to her head; Today, convicted killer apologizes for shooting ex-girlfriend

#4 - Divinely Unfaithful

Season 42 - Episode 21 - Aired 1/18/2019

Televangelists Jim and Tammy Faye Baker's religious empire and the sex and financial fraud scandals that engulfed it.

#5 - My Father BTK

Season 42 - Episode 23 - Aired 2/1/2019

After "BTK" serial killer Dennis Rader's shocking confession, his daughter had to find ways to cope with her new, shattered reality.

#6 - President Trump: 30 Hours

Season 42 - Episode 40 - Aired 6/16/2019

Trump on polls showing Biden ahead: 'I don't believe those polls; Trump on Mueller, immigration and putting his personal touch on Oval Office

#7 - Abby Hernandez

Season 42 - Episode 1 - Aired 9/7/2018

New Hampshire teen Abby Hernandez talks about her 2013 abduction, captivity and abuse.

#8 - One Night in Central Park

Season 42 - Episode 37 - Aired 5/24/2019

Revisiting the 1989 case of a female jogger who was brutally raped and beaten in New York City.

#9 - Robert Blake

Season 42 - Episode 20 - Aired 1/11/2019

An interview with actor Robert Blake 14 years after he was acquitted of murdering his wife, a case that remains unsolved.

#10 - Becoming Michelle: A First Lady's Journey with Robin Roberts

Season 42 - Episode 11 - Aired 11/11/2018

From Michelle Obama's humble Chicago upbringing to the White House; Michelle Obama opens up about miscarriage, IVF and marriage counseling

#11 - The Devil in Disguise

Season 42 - Episode 17 - Aired 12/7/2018

Interviews with people involved in the case of Shanann Watts, who was pregnant when she was murdered by her husband, who also killed their two young daughters.

#12 - With Friends Like These

Season 42 - Episode 27 - Aired 3/1/2019

When a 19-year-old woman's car is found on a New Jersey bridge, a classmate comes forward with information that helps authorities discover what happened.

#13 - The Woman in the Suitcase

Season 42 - Episode 32 - Aired 4/5/2019

#14 - My Son Is Not a Monster

Season 42 - Episode 8 - Aired 10/19/2018

An 11-year-old boy convicted of first-degree murder gets his conviction overturned after seven years in juvenile detention.

#15 - Deadly Dance in Texas

Season 42 - Episode 28 - Aired 3/8/2019

A love triangle involving a divorced mother and two wealthy doctors ends in a successful murder-for-hire plot.

#16 - Murder in the Mansion

Season 42 - Episode 9 - Aired 10/26/2018

A man is convicted of murder, burglary, kidnapping, arson, theft and extortion in connection with brutal murders in a Washington, D.C., mansion.

#17 - Brave New Face

Season 42 - Episode 12 - Aired 11/16/2018

A man disfigured during an attempted suicide shares his story following a life-changing transplant surgery.

#18 - Mary Poppins Returns: Behind the Magic

Season 42 - Episode 13 - Aired 11/22/2018

A behind-the-scenes look at "Mary Poppins Returns"; exclusive interviews with cast and crew.

#19 - Family Secrets

Season 42 - Episode 14 - Aired 11/23/2018

#20 - George H.W. Bush: Life Love Legacy

Season 42 - Episode 15 - Aired 11/30/2018

The legacy of former President George H.W. Bush.

#21 - Bundy

Season 42 - Episode 25 - Aired 2/15/2019

Insight into serial killer Ted Bundy's vicious past and crimes, featuring new interviews with key players, including surviving victims and those who were instrumental in helping place him behind bars.

#22 - The Perfect Nanny

Season 42 - Episode 39 - Aired 6/14/2019

A true crime case of a husband who did the unthinkable. Having an affair with his nanny and then murdering his wife. New details and emotional interviews.

#23 - The Man Behind the Mask

Season 42 - Episode 10 - Aired 11/9/2018

When a former hockey star's young family is shattered by his wife's murder, their 7-year-old daughter becomes the key eyewitness in the attack.

#24 - Gypsy's Truth and Lies

Season 42 - Episode 18 - Aired 12/14/2018

Gypsy Rose Blanchard opens up about why she plotted to kill her mother and explains what life was like with her; Nicholas Godejohn, Gypsy's ex-boyfriend, alleges that Gypsy was the mastermind behind the murder and he was a hired hit man.

#25 - From Classroom to Captive

Season 42 - Episode 3 - Aired 9/21/2018

Interview with Elizabeth Thomas, who was taken at age 15 by her Tennessee high school teacher, resulting in a 38-day nationwide manhunt.