Friday, May 29, 9-11 p.m. ET: Did Doug Grant commit a near-perfect murder of his wife, or was he somehow involved in a misguided prosecution? NBC's Josh Mankiewicz reports on a mystery so deep and strange that even seven years of investigation left some of the biggest questions unanswered.

 

Sunday, May 31, 7-8 p.m. ET: An exclusive, all access and behind-the-scenes look at Taylor Swift, one of the hottest artists in the country. NBC's Hoda Kotb sits down with Taylor and her mom Andrea Swift to discuss the road to fame and life in the spotlight. Preview some backstage videos here.

 

Friday, May 22, 9-11 p.m. ET: In a two-hour mystery about passion, manipulation and murder, NBC's Keith Morrison reports on the death of a fisherman, and the stripper and the steelworker who end up in the trial of their lives.

Sunday, May 24, 7-9 p.m. ET: A young American in Britain was wooed and won by a dashing Englishman who said he was spy. It turned out he was anything but honest. See NBC's Dennis Murphy's report on a whirlwind romance that became a worldwide race to rescue the young woman.
 
A wealthy hedge fund manager whom the rich and powerful trusted with their fortunes suddenly disappears - and the money was gone, too. Turns out all along, he'd been playing a dangerous game with very high stakes. NBC's Dennis Murphy reports.
 
 
Monday, May 25, 8-10 p.m. ET: In Graham, N.C., a young man is arrested for the murder of a local couple, and even his own father believes he is guilty at the time. When the charges are dropped, Paul Crotts becomes determined to clear his son Mark's name and to rid himself of his own guilt. NBC's Keith Morrison reports.

Plus, NBC's Dennis Murphy reports on a young woman stuck in an abusive relationship and her controlling husband who is arrested after her dead body is found along the side of a river in Michigan. Was it homicide at her the hand of her husband, or were others involved?

In an exclusive, all-access look at one of the hottest artists in the country, Dateline NBC will air "Dateline: On Tour With Taylor Swift" on Sunday, May 31 at 7 p.m. ET. "Dateline: On Tour With Taylor Swift" is a one-hour special, featuring unprecedented behind-the-scenes access to this summer's hottest concert ticket, Swift's first-ever headlining tour, the FEARLESS 2009 Tour.

Videos: Get a web-exclusive sneak peek of Taylor Swift and her bandmates here.
 
Shot on three continents over a period of three months, the hour offers a comprehensive look at the creation and launch of the sold-out Fearless tour, including concert and backstage footage from the U.S., the U.K. and Australia, interviews with Taylor and her band and crew, and exclusive looks at Swift's tour bus, dressing room, crew meetings, dancer auditions, and concert performances.

The special edition of Dateline also features video diaries, shot by Swift herself, offering an intimate look at the life of music's newest superstar. NBC News' Hoda Kotb also talks with Taylor and her mom, Andrea Swift, about the road to fame and life in the spotlight.

Slideshow: See photos of Taylor Swift with Dateline NBC here.
 
Taylor Swift has had singles top both the country and pop radio charts, and sold more albums in 2008 than any other recording artist, in any genre of music. The 19-year old's sophomore release, "Fearless," was voted 2009's Album of the Year by the Academy of Country Music, and reached double-platinum in just four weeks. "Fearless" was the year's biggest debut for any female artist, and the fourth highest debut of 2008, over all.  Now triple-platinum, "Fearless" has spent more weeks in the #1 position atop Billboard's Top 200 all-genre CD sales chart than any other album this year. Taylor, whose career record sales now top 7 million, currently holds the "Billboard" all-genre record for most Top 20 debuts in a calendar year. Earlier this year, Taylor sold out a show at Madison Square Garden in one minute, and one at Los Angeles' STAPLES center in just two minutes.

Cody McCasland, 7 years old, suffers from a gene mutation which caused deformities in his lower spine. He has no knee joints nor tibia. On prosthetics, he's now living a happy and exciting life… giving back and charming everyone from Ellen to Oprah.

Watch the report here.

Here are links to organizations related to Cody:
Help Team Cody Give Back
Jeff Gordon Foundation
Challenged Athletes Foundation

An investigation turns into a perplexing police case. It started as a late-in-life romance between a prominent businessman and his new, younger wife. Soon, she became his younger widow. It wasn't long before questions were being raised about her past... Then, Dateline uncovered information that raised even more. NBC's Dennis Murphy has the story of "The Last Dance."

Also: Just like its hero, it started as an underdog: "Slumdog Millionaire," the tiny film that went on to win big on Oscar night. As the movie won international acclaim, even its littlest cast members were showered with sudden fame: Kids from the slums of India turned movie stars.  So where are they now? Not where you might think. NBC's Keith Morrison reports on what happens when a Hollywood ending collides with real life.

Earlier this week, the Obama administration replaced its top general in Afghanistan with a specialist in unconventional warfare. That means, in part, that the new commander will try to defeat the Taliban and al-Qaida by winning over the local Afghan population. He may have an unlikely ally, another American, who has already been fighting the Afghanistan war-- only on a different front. And, as Ann Curry reports, for different, very personal reasons.

And then, Keith Morrison has the story of a remarkable little boy, Cody McCasland.
He lost both his legs before the age of two. Now, at seven, he's an inspiration to everyone he meets - from Oprah to challenged athletes to our nation's wounded vets. Those stories coming up on Dateline Sunday at 7 p.m. ET, 6 p.m. CT.

Sometimes it's hard to tell  exactly what goes on in a marriage, even in those that seem happy and successful. The Cordes couple was like a lot of others you might know: solid on the outside, but with a deep crack running beneath the surface.

Maybe that was easier to ignore, after they bought a house on an island in the sun. Easier to ignore, until the night the wife disappeared. Join NBC's Dennis Murphy for "The Party's Over."

At a time when many NBA stars are better known for their troubles off the court, rather than their talents on it, former Phoenix Sun point guard Kevin Johnson is a game-changer. In November, he was elected mayor of Sacramento, Calif. - his hometown - and took on a challenge that would make a three-point buzzer-beater look easy... trying to turn around a city hard-hit by the recession. Josh Mankiewicz goes one-on-one with Kevin Johnson.

Also - Bernie Madoff may have run what was the world's biggest Ponzi scheme - but certainly it isn't the only one. Overshadowed by the mountain of money Madoff stole are dozens of smaller alleged scams. Some have led to arrests, but they haven't made the same headlines because investors allegedly lost millions, not billions. Small change compared to Madoff. Unless of course, it was your money that was lost. Chris Hansen has that story.

And then, Hoda Kotb has the story of a third generation race car driver who loves the feel of the pedal on the metal. With her skill, daring and endurance she's making fans and generating headlines. And here's the clincher: She's only eight years old.

And, Leonardo DeCaprio, Matt Damon, Arnold Schwartzenneger all just had to have it: The new celebrity status symbol: the Tesla Roadster. It's a sexy sportscar that packs its explosive power in batteries behind the seats, and its makers hope it's the spark that will revolutionize the car industry. Josh Mankiewicz is On the Road with the Tesla.

See it this Sunday at 7 p.m. ET, 6 p.m. CT.

It's been more than a year and a half since Stacy Peterson vanished, and for nearly all of that time, her husband, Drew Peterson, has been the only suspect in her disappearance. Now, he's been indicted for murder. Not Stacy's, but that of Kathleen Savio, his third wife - found dead in her bathtub in 2004.

One man with two wives, both of whom told loved ones they were afraid of him... both now gone. We'll have the latest.

And also: It's the scandal that brought down presidential candidate John Edwards and Governor of New York Eliot Spitzer: Infidelity.

Infidelity breaks hearts and raises questions, ones that continue to perplex us. Why does someone cheat? Are the reasons different for men and women? Are cheaters born... or made? And can you affair-proof your marriage? 

Turns out, new science is revealing that a lot what we think we know about adultery, is wrong. Hoda Kotb helps us put some myths about infidelity to bed.

See it all on a two-hour Dateline at 9 p.m. ET, 8 p.m. CT.