The BEST episodes of Dateline NBC season 23

#1 - Spy Games

Season 23 - Episode 26 - Aired 3/12/2015

The poisoning death of former Russian spy and businessman Alexander Litvinenko, traveling to London, Moscow and Rome to take a closer look at the circumstances surrounding his murder and the people that are involved.

#2 - The Wire

Season 23 - Episode 99 - Aired 5/3/2015

Authorities try to solve a thirty year old cold case involving a young nurse who was found murdered in her small apartment, where the only evidence the investigators could find was a strange weapon, a broken necklace, and not much else. Keith Morrison reports.

#3 - The Girl with the Blue Mustang

Season 23 - Episode 99 - Aired 5/24/2015

Police find very little evidence, fingerprints or other useful information when they investigate the murder of a popular college student who was gunned down inside of her own car, but they soon get an unexpected lead from a surprising source.

#4 - Vanished

Season 23 - Episode 99 - Aired 9/3/2015

When Amber Dubois vanished in San Diego County, a search turned up nothing. Then, a year later, Chelsea King disappeared in a neighboring town. Keith Morrison reports on the mystery of the missing California teens

#5 - The Shadow

Season 23 - Episode 74 - Aired 9/11/2015

A home in a small Iowa town is disturbed in the middle of the night by an intruder. Keith Morrison reports.

#6 - Deadly Exchange

Season 23 - Episode 99 - Aired 5/3/2015

A foreign exchange student and soccer player's participation in a dangerous game leads to deadly consequences.

#7 - Secrets at the Sunshine Motel

Season 23 - Episode 21 - Aired 2/13/2015

The story of a successful realtor who was attacked and left for dead while showing a home in what looks like a murder-for-hire, and the authorities are left to question his business partners and family to determine a motive. Josh Mankiewicz reports.

#8 - Finding Savanna

Season 23 - Episode 72 - Aired 8/7/2015

After losing a hard-fought custody battle, a mother vanishes with her nearly one-year-old daughter, forcing the father to embark on a desperate, two decade search for his child across four continents, making international headlines along the way. Andrea Canning reports.

#9 - The Accomplice

Season 23 - Episode 75 - Aired 9/18/2015

Joyce Mitchell comes to work at a prison tailor shop and meets two inmates -- David Sweat and Richard Matt -- serving life for murder.

#10 - Escape: The Great California Fire

Season 23 - Episode 25 - Aired 4/26/2015

A look through the eyes of more than a dozen survivors of California's largest wildfire.

#11 - Mystery on the Early Shift

Season 23 - Episode 9 - Aired 11/21/2014

When a wife and mother is found dead in a Kentucky warehouse where she worked, detectives soon zero in on one person of interest.

#12 - The Secret Life of a Soccer Mom

Season 23 - Episode 52 - Aired 5/29/2015

When a single mother of three goes missing, her family and the authorities organize a huge search, but as the investigation continues, the police learn that she was living a double life that points them toward several dangerous suspects. Keith Morrison reports.

#13 - Out of the Shadows

Season 23 - Episode 59 - Aired 6/14/2015

Summer is all about baseball games, laying out by the pool, barbecues in the sun. But there are a handful of kids who won't enjoy these activities this season, or at any time of the year.

#14 - Crisis on Campus

Season 23 - Episode 63 - Aired 6/21/2015

#15 - Indiscretion

Season 23 - Episode 71 - Aired 7/31/2015

Authorities in Baltimore find a young woman who was murdered in her own home, but they cannot crack the case until a decade later, when DNA evidence provides them with a new suspect, giving two detectives renewed vigor to solve the cold case. Dennis Murphy reports.

#16 - The Secret (2015)

Season 23 - Episode 49 - Aired 5/15/2015

A determined investigator from Orange County tries to solve a case involving Patricia Esparza, a woman hiding a 20-year-old secret, and who in that time managed to pull herself out of poverty, get an education, and become a respected professor.

#17 - Angels and Demons

Season 23 - Episode 46 - Aired 5/1/2015

Two sisters, who once belonged to a traveling commune, share horrifying stories of lies, greed and lust from the time that they were involved with the group, which was investigated for a period of over ten years for their mysterious deaths. Dennis Murphy reports.

#18 - True Lies

Season 23 - Episode 40 - Aired 4/16/2015

After a mother is murdered in her own bed, the 911 dispatch center fields two calls, one from her son and one from her husband, both of whom claim the other is the killer, telling wildly different stories that the authorities must figure out. Dennis Murphy reports.

#19 - Lethal Weapon

Season 23 - Episode 32 - Aired 4/2/2015

When an accomplished young doctor is rushed to the hospital after collapsing in her home, her friends and co-workers are left perplexed, but when it turns out the cause was cyanide poisoning, the authorities begin a criminal investigation. Dennis Murphy reports.

#20 - The Fugitive Millionaire

Season 23 - Episode 31 - Aired 3/26/2015

Keith Morrison reports on John McAfee, the antivirus pioneer who remains a person of interest to police in their investigation into the murder of Gregory Faull in Belize. In a new interview with Dateline, McAfee discusses his new computer security business and his decision to stop running and settle down.

#21 - The Carrollton Plot

Season 23 - Episode 4 - Aired 10/17/2014

While away on business in California, Frank Howard, a high flying accountant from Carrollton, Texas, learns that his wife has been brutally attacked in their home.

#22 - Infatuation

Season 23 - Episode 27 - Aired 3/13/2015

An art student from Dallas who was murdered in her own bed with no signs of forced entry, which leads the authorities to realize that she likely knew the person who ended up killing her. Keith Morrison reports.

#23 - What Lies Beneath

Season 23 - Episode 20 - Aired 2/6/2015

A witness comes forward to help solve a 20 year-old cold case involving a woman who mysteriously vanished in Florida just days before she was going to move to a new city with her 5 year-old son, leaving behind very few clues for authorities. Dennis Murphy reports.

#24 - Unknown

Season 23 - Episode 12 - Aired 1/9/2015

#25 - A Perfect Spot

Season 23 - Episode 36 - Aired 4/9/2015

The authorities are left searching for answers while investigating a Georgia couple's private Valentine's Day getaway that turned deadly, but plot thickens when they uncover evidence of tire treads at the scene and a series of cell phone calls. Keith Morrison reports.