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Dateline: Secrets Uncovered
Season 10
Episode 42

The Prussian Blue Mystery

February 23, 2022

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Dateline: Secrets Uncovered - S10 - E42

Young mom Brigida Uto loved running and chasing her toddler around, and when her health suddenly failed, doctors had to unravel a medical mystery to save her life; then, the FBI joined the confounding case and uncovered a sinister plot.

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Dateline: Secrets Uncovered: Season 10 - 71 Episode s

10x1 - The Devil in Disguise
March 1, 2021
Frank Rodriguez was a Navy vet who dedicated his life to helping needy children, not a guy with many enemies. Figuring out who would want him dead was a challenge. How he died was also a mystery investigators needed to solve to catch his killer.
10x2 - While He Was Sleeping
March 18, 2021
When Eric Somuah was found shot in his bed, it was hard to imagine who would want the outgoing salesman dead. One dogged detective refused to give up. His investigation put him on a path filled with twists, turns and an ending few saw coming.
10x3 - The Root of All Evil
March 25, 2021
The life of a married father of two and successful real estate appraiser ends all too soon; investigators wonder if money is a motive, or if the murder is the result of a family rift.
10x4 - Deadly Betrayal
April 1, 2021
Sabrina admits to killing Lisa, but no one understands why, which complicates the case immensely.
10x5 - Lethal Weapon
April 8, 2021
A successful, seemingly healthy doctor collapses at home and is rushed to the ER, leaving friends and colleagues puzzled.
10x6 - Secret Lives
April 22, 2021
Missing wife. Grieving husband. Turns out, both had secrets. Jen Ramsaran vanished just before Christmas and detectives needed to know if her online life held the key to this mystery or if the answer was closer to home.
10x7 - What Lies Beneath
April 29, 2021
Investigators go to unexpected depths to solve the mystery of missing Lynn Friend, a devoted mother who had wedding plans when she vanished.
10x8 - Fatal Attraction
May 6, 2021
A top doctor known for saving lives found himself fighting for his own after he was poisoned. Investigators immediately started looking into the women in his life, wondering if one relationship was toxic.
10x9 - Shining Star
May 13, 2021
Chiquita Tate was growing her reputation as a tenacious defense attorney but her promising career was cut short when she was murdered. Police had a challenge. At work, she dealt with tough clients, and at home, she was going through a rough time.
10x10 - Queen of the County
May 20, 2021
The Harkey name was famous for pecan harvesting in Texas; the matriarch, with a powerful grip on the family fortune, went missing, so investigators focused on the family; in fact, the plot was more tangled than the branches of a pecan tree.
10x11 - After Midnight
June 3, 2021
A college freshman is found brutally beaten, a crime scene so bloody police can't identify the victim, but identifying the killer was easier -- and his motivation for the killing becomes the foundation for his defense.
10x12 - Miami Heat
June 10, 2021
Police probe the shooting of the father and his infant son on the streets of Miami -- while the child survives, the father does not. English
10x13 - Someone Was Out There
June 17, 2021
One murder in broad daylight. Then another brutal attack almost exactly a year later. Police discovered a chilling connection between the victims, and many feared they had a serial killer on their hands. It was a race to connect the dots.
10x14 - Secrets at Sunshine Motel
June 26, 2021
Vern Holbrook, the owner of a thriving estate company and beloved patriarch of a family, fails to show up at a meeting with his daughter-in-law and she grows concerned.
10x15 - Indiscretion
July 1, 2021
It was a violent and bizarre crime scene: #1 scrawled next to the lifeless body. The victim’s boyfriend had an alibi and the case went cold. Then, a DNA hit. But investigators couldn’t figure out the link between two people separated by 1,500 miles.
10x16 - The Evil to Come
July 8, 2021
She was a wealthy, beloved socialite in the suburbs of New York City and an unlikely target for such a brutal murder. Police immediately zeroed in on the most likely suspect but solving this crime wouldn’t be easy or quick.
10x17 - True Lies
July 15, 2021
A woman is brutally murdered in her bed and her husband and son both immediately begin pointing fingers at each other after two rapid-fire calls are made to 911.
10x18 - Finding Savanna
July 22, 2021
It was a custody battle, then baby Savanna was gone. The mystery of her whereabouts spanned two decades. Solving it took investigators nearly 10,000 miles around the world, driven by a determined dad trying to learn what happened to his daughter.
10x19 - Mystery on Sunrise Drive
June 29, 2021
Real estate developer Gary Triano lived large; his murder was a bold statement; there were whispers of a mob connection, an angry investor, or a mad ex, and the mystery took nearly two decades to unravel.
10x20 - The Wire
August 5, 2021
Lynne Knight was a vibrant young nurse whose love of adventure made her stand out. Then, she was murdered. The savage crime haunted detectives for decades. The killer thought his secret was safe, until new investigators put fresh eyes on the case.
10x21 - The Long Road
August 12, 2021
A chance meeting at a nightclub ends in murder; those involved in the gruesome crime thought they had buried the secrets of the past, but a relentless team of investigators will stop at nothing to unearth the truth.
10x22 - Jagged
August 19, 2021
Detective identify multiple suspects after a mother disappears, but they later face scrutiny from the woman's family due to the lack of answers they have provided.
10x23 - Stone-Cold
August 25, 2021
Nick popped the question and Kristy said yes; they were busy planning their future when she found him dead in the bedroom; police questioned spurned lovers and office enemies before a tip from Nick's brother helped reveal the true killer.
10x24 - The Early Shift
September 1, 2021
Michelle Mockbee met her husband at the warehouse where they both worked; it was also where she met an untimely death; security footage led police to a suspect, but when it appeared justice had been served, a scandal turned the case upside down.
10x25 - Prairie Confidential
September 8, 2021
Angila Wilder was a busy mom, working to make her dream of becoming a nurse come true, then she was murdered; at first, investigators thought it looked like an open-and-shut case, but it would take an elaborate sting to uncover the truth.
10x26 - Noises in the Night
September 15, 2021
Emma Walker was a fun-loving teen with her whole life ahead of her, then she was shot dead in her bed; detectives were facing a tough investigation.
10x27 - Before the Storm
September 22, 2021
When a recently divorced mom vanished, the search to find her was halted by a hurricane; as the floodwaters receded, investigators discovered the same deadly storm that slowed their investigation was about to flush out her killer.
10x28 - The Alibi
September 29, 2021
Private First Class Karlyn Ramirez had a job she loved and a baby she adored. Then, she was shot dead in her home. Her killer thought he'd covered his tracks, but investigators uncovered a plot so devious, it defied imagination.
10x29 - Suspicion in Silver City
October 6, 2021
Cassy Farrington had two beautiful kids, a doting boyfriend and an exciting new job. Then she was found dead in her bathtub. Cassy's parents were determined to solve the mystery, stopping at nothing until they found justice.
10x30 - After the Storm
October 13, 2021
A woman is found strangled after a powerful storm; police focus on a fiancé and a co-worker with a crush until they hear from a flood of women who've had chilling encounters with a stranger; It seemed a predator was stalking the women of Austin.
10x31 - The Secrets of Cottonwood Creek
October 20, 2021
It was supposed to be happy weekend at their cabin. They went on a hike, pausing at a perfect spot for pictures. But something went wrong, and the frigid currents below took a life. Investigators wondered if they also swept away a secret.
10x32 - Unthinkable: The Menendez Murders
October 27, 2021
In a case made for Hollywood, they were camera ready. Erik and Lyle Menendez were convicted of murdering their own parents more than two decades ago. Now hear chilling new details about the gruesome double slaying from the brothers themselves.
10x33 - The Match
November 3, 2021
Diane Marcell walked into her home and found her daughter covered in blood. Then, she felt pure terror. The attacker said she was next. A single drop of blood was the key to finding him, but it took nearly a decade to unlock its secrets.
10x34 - Finding Sarah Goode
November 10, 2021
Single mom Sarah Goode went missing after a night out with friends; her family was determined to find her; police turned up four possible suspects and two tantalizing clues; the killer left a signature.
10x35 - The Last Day
November 17, 2021
After Erin Corwin told her husband she was scouting hiking trails in Joshua Tree National Park, she suddenly vanished -- police quickly uncovered a steamy love triangle and a mystery with a deep pool of potential suspects.
10x36 - The Valentine's Day Mystery
November 24, 2021
He was a wealthy doctor with a perfect life and the perfect wife; then, he found her dead on Valentine's Day; she was beloved but did have enemies; investigators followed a bloody trail of evidence, leading to a big courtroom twist.
10x37 - Mean Girls
December 1, 2021
When Ricky Cowles and his girlfriend moved in together, her best friends moved in too; at first, it was like a big sleep over, then Rickie was found shot dead; his killer would let a secret slip, but turns out, he was keeping more than one.
10x38 - Bitter Pill
December 15, 2021
Rosie and Yazeed Essa seemed to have an ideal life, two beautiful children, no financial worries and a loving extended family; a fatal fender bender shattered it all; investigators discovered her marriage was full of secrets.
10x39 - Taken
January 5, 2022
He was a drummer who never missed a beat, then vanished; his family and the police were determined to work together; it was a race against the clock to find him.
10x40 - The Night Brianna Vanished
January 12, 2022
When a college student vanishes, investigators launch a massive manhunt and quickly discover she is not the kidnapper's first victim; police are inundated with leads before an anonymous tipster divulges a secret that helps crack the case.
10x41 - In Plain Sight
January 26, 2022
Amber Dubois disappeared in the San Diego area, and the search turned up nothing. Then, a year later, Chelsea King disappeared in a neighboring town. Investigators were determined to find out if the two cases were connected. Will these girls be found together and alive?
10x42 - The Prussian Blue Mystery
February 23, 2022
Young mom Brigida Uto loved running and chasing her toddler around, and when her health suddenly failed, doctors had to unravel a medical mystery to save her life; then, the FBI joined the confounding case and uncovered a sinister plot.
10x43 - 11 Minutes
March 2, 2022
Madison Holton’s parents had reached their wit’s end. They called a family meeting to confront their rebellious teen. When it was done, two of them were dead and police were left with a puzzling mystery.
10x44 - She Didn't Come Home
March 9, 2022
Investigators didn’t know if Kathy Heckel was a missing person or murder victim. The case grew cold until, decades later, a new detective dusted off the old files. They couldn’t catch the elusive suspect then, but he hoped to solve the mystery now.
10x45 - Facing the Music
March 16, 2022
Twenty-five-year-old Christy Mirack always wanted to be a teacher. She was just getting her start when she was murdered. It took police twenty-five years to find her killer. Turns out, he was hiding in plain sight the whole time.
10x46 - Before Midnight
March 23, 2022
Financial advisor Pam Zimmerman was everything to her children. Then she was gone, shot dead in her office. Detectives focused on three men in Pam’s life, wondering if the motive was professional or personal.
10x47 - The Secret Keepers
March 30, 2022
Randy Baker battled addiction as a young man, then found his calling as a counselor later in life. When Randy was found dead, investigators wondered if someone from his past put an end to his future, or if trouble was closer to home.
10x48 - Evil Was Watching
April 6, 2022
Michella and Jenni were from the same town and both loved riding bikes. They did not know each other but were forever connected by their unsolved murders. Someone else their age grew up to become a detective. Now, she was trying to solve their cases.
10x49 - The Target
April 13, 2022
As a love triangle between a podiatrist, his estranged wife and his new girlfriend took shape, a luxury car salesman got a surprising visit from a beautiful former customer. She was not looking to buy a car. She wanted someone murdered.
10x50 - The Disappearance of Laci Peterson
April 20, 2022
After following the case for more than fifteen years, Dateline delivers a comprehensive report with rarely seen interrogation video, new insight from prosecutors, and surprising details from the other woman, Amber Frey, who helped uncover the truth.
10x51 - Secrets in the Smoky Mountains
April 27, 2022
Bob McClancy was a beloved detective. When his death was ruled a suicide, loved ones were suspicious. United by grief, his widow and good friend found themselves falling in love. Then Bob’s son started asking questions and uncovered a secret.
10x52 - Mystery in Big Sky Country
May 4, 2022
When a handsome veterinarian is found dead in a small Montana town, it launches a mystery that remains unsolved for years. After nearly two decades, investigators think they can solve it, but know convincing a jury will be no easy task.
10x53 - Before Dawn
May 11, 2022
Lisa Techel was newly married and pregnant when a shotgun blast ended everything. Police questioned the neighbour, who had a gun and a grudge. There were whispers that her husband had a secret. The case tested three juries then took one final twist.
10x54 - Scorned
May 18, 2022
Dave Kroupa and Cari Farver began a casual fling. Then Cari disappeared, but Dave was getting disturbing texts from her. It was a mystery that linked three women with one man in a case of jealousy, secret identity and murder.
10x55 - The Halloween Party
May 25, 2022
This wasn't just any Halloween party. It was the big event of the season. Chelsea had her costume ready, sewed the leaves on herself. She was dressed as Poison Ivy, but never imagined she would encounter real evil that night.
10x56 - The Mystery of Effingham County
June 1, 2022
Publicly they were a prominent family highly respected for their success. But privately a jury heard something else. It was case that pitted father against son, husband against wife and brother against brother.
10x57 - Something Sweet
June 8, 2022
On a warm August day, Ray Kotomski quenched his thirst with a cool drink. Kotomski was dead within hours. Investigators had to figure out what killed the happily retired Pennsylvania man, and also whether this was even a crime at all.
10x58 - A Perfect Spot
June 15, 2022
They were a married couple meeting for a secret Valentine's Day rendezvous. The secluded spot became a crime scene when Richard Schoeck was found shot dead there. Turns out, the rendezvous wasn't the only secret in their lives.
10x59 - Friends Until Death
June 22, 2022
Jessie Blodgett was a budding musician and actress; the morning after a performance, Jessie's mother found her dead.
10x60 - One Small Dose
June 29, 2022
Tara Fitzgerald loved hanging out with friends. Like a lot of teens, she kept a few secrets from her folks. One turned out to be deadly. Detectives uncovered a disturbing trend endangering teens in their community and across the nation.
10x61 - Deadly Devotion
July 6, 2022
An Army captain, back from serving abroad, is found dead in her El Paso home. The news stuns her tight-knit military community. Her husband has an alibi, but what about her family and friends? Andrea Canning reports on a case with many twists and turns.
10x62 - The House on Badger Lane
July 13, 2022
Jason and Julie Harper live the American dream in a picture-perfect home with three beautiful children, until the morning comes when Jason is found murdered; police are quick to discover who did it but proving why is much harder.
10x63 - Without a Trace
July 20, 2022
Carrie Olson had a heart of gold and a new man in her life. Then, she went missing. Loved ones launched a desperate search for answers, but investigators wondered if one of them was hiding a dark secret.
10x64 - A Place on the Sand
July 27, 2022
Sabine Buehler moves to an island off the coast of Florida for her own slice of paradise. When she vanishes, friends know she hasn't left on her own. Finding out what happened to her leads police down a long and winding path in the sand.
10x65 - The Night Before Halloween
August 3, 2022
It takes a special eye to spot the thing that's out of place at a crime scene; in this case, that thing looks so insignificant, no one even knows what it is or what it means; it takes a team of determined investigators almost two decades to find out.
10x66 - The Mystery on Albion Road
August 10, 2022
A young woman was found in the middle of the road, nearly dead. With little evidence to go on, investigators hoped to find out what happened from the victim herself. The problem was, she couldn't remember.
10x67 - As Darkness Fell
August 17, 2022
Some who knew the couple in this story saw two people in love. Others saw a marriage in trouble. They loved hunting and were both excellent shots. So good, they rarely missed, whatever the target.
10x68 - Haunting Images
August 24, 2022
A young mother was killed and her family hoped for quick justice; nearly three decades later, small traces of DNA evidence reveal an ugly truth.
10x69 - The Beauty and the Beast Mystery
August 31, 2022
When a young, physically fit woman died suddenly, her friends and family were told it was a freak accident in a gym; equipment can malfunction, but so can relationships.
10x70 - Deadly Exposure
September 7, 2022
Hundreds of Americans die every year from accidental carbon monoxide poisoning; according to police in Ohio, one of those deaths was no accident; if anyone knew how to use a deadly gas, it was their prime suspect.
10x71 - Secrets of Lake Seminole
September 8, 2022
Mike Williams goes out duck hunting before dawn and never returns; authorities declare his death an accidental drowning, but Mike's mother believes he was murdered; after a dramatic secret comes to light, police believe she may be right.

Dateline: Secrets Uncovered: All seasons

S1: Season 1
23 Episode s
S2: Season 2
15 Episode s
S3: Season 3
14 Episode s
S4: Season 4
17 Episode s
S5: Season 5
14 Episode s
S6: Season 6
14 Episode s
S7: Season 7
24 Episode s
S8: Season 8
24 Episode s
S9: Season 9
47 Episode s
S10: Season 10
71 Episode s
S11: Season 11
32 Episode s
S12: Season 12
17 Episode s
S13: Season 13
13 Episode s

10x1 - The Devil in Disguise

10x2 - While He Was Sleeping

10x3 - The Root of All Evil

10x4 - Deadly Betrayal

10x5 - Lethal Weapon

10x6 - Secret Lives

10x7 - What Lies Beneath

10x8 - Fatal Attraction

10x9 - Shining Star

10x10 - Queen of the County

10x11 - After Midnight

10x12 - Miami Heat

10x13 - Someone Was Out There

10x14 - Secrets at Sunshine Motel

10x15 - Indiscretion

10x16 - The Evil to Come

10x17 - True Lies

10x18 - Finding Savanna

10x19 - Mystery on Sunrise Drive

10x20 - The Wire

10x21 - The Long Road

10x22 - Jagged

10x23 - Stone-Cold

10x24 - The Early Shift

10x25 - Prairie Confidential

10x26 - Noises in the Night

10x27 - Before the Storm

10x28 - The Alibi

10x29 - Suspicion in Silver City

10x30 - After the Storm

10x31 - The Secrets of Cottonwood Creek

10x32 - Unthinkable: The Menendez Murders

10x33 - The Match

10x34 - Finding Sarah Goode

10x35 - The Last Day

10x36 - The Valentine's Day Mystery

10x37 - Mean Girls

10x38 - Bitter Pill

10x39 - Taken

10x40 - The Night Brianna Vanished

10x41 - In Plain Sight

10x42 - The Prussian Blue Mystery

10x43 - 11 Minutes

10x44 - She Didn't Come Home

10x45 - Facing the Music

10x46 - Before Midnight

10x47 - The Secret Keepers

10x48 - Evil Was Watching

10x49 - The Target

10x50 - The Disappearance of Laci Peterson

10x51 - Secrets in the Smoky Mountains

10x52 - Mystery in Big Sky Country

10x53 - Before Dawn

10x54 - Scorned

10x55 - The Halloween Party

10x56 - The Mystery of Effingham County

10x57 - Something Sweet

10x58 - A Perfect Spot

10x59 - Friends Until Death

10x60 - One Small Dose

10x61 - Deadly Devotion

10x62 - The House on Badger Lane

10x63 - Without a Trace

10x64 - A Place on the Sand

10x65 - The Night Before Halloween

10x66 - The Mystery on Albion Road

10x67 - As Darkness Fell

10x68 - Haunting Images

10x69 - The Beauty and the Beast Mystery

10x70 - Deadly Exposure

10x71 - Secrets of Lake Seminole

S1: Season 1

S2: Season 2

S3: Season 3

S4: Season 4

S5: Season 5

S6: Season 6

S7: Season 7

S8: Season 8

S9: Season 9