As a bonus for you, we’re sharing the trailer for season 4 of ‘Dateline: Missing in America.’ The award-winning podcast series is back with a brand-new season and 6 brand-new cases.

Correspondent Josh Mankiewicz reports on missing person cases brought to Dateline’s attention by their social media followers. Each episode centers on one individual’s disappearance, told through the voices of those left behind. Listen closely. You could be the key to solving a mystery. Details shared by loved ones and investigators may spark a memory that could help bring answers.

Search ‘Dateline: Missing in America’ and follow now to hear the new season.

"Letters from Sing Sing" Host and "Dateline" Producer Dan Slepian gives a special preview of "The Sing Sing Chronicles," a special two-night event presented by MSNBC Films. Building on decades of Dan's investigative reporting, the four-part documentary series from NBC News Studios and Director Dawn Porter exposes the injustices of different wrongful convictions at the notorious Sing Sing prison. The first two episodes of "The Sing Sing Chronicles" premiere Saturday, November 23rd at 9pm ET, and the final two episodes air Sunday, November 24th at 9pm ET on MSNBC.

In this bonus episode of the award-winning Letters from Sing Sing podcast, veteran producer Dan Slepian reflects on the final chapter in J.J. Velazquez’s hard-fought path to full exoneration after being wrongfully convicted of murder over two decades ago.  Dan and J.J. join Kristen Welker on Meet the Press for a “Meet the Moment” conversation to detail their 20+ year path to overturning J.J.’s conviction.

Hear an exclusive audio excerpt from Dateline producer Dan Slepian’s new book “The Sing Sing Files” which chronicles his two-decade journey navigating the criminal justice system to help free six innocent men.  Available now wherever books and audiobooks are sold.  For more details and to purchase, follow this link:

https://bit.ly/TheSingSingFilesLetters

As a bonus for you, we’re sharing the trailer for Season 3 of Dateline: Missing in America. The chart-topping podcast series is back with a brand-new season and brand-new cases.  

Are you the key to solving a mystery? Correspondent Josh Mankiewicz reports on perplexing missing person cases brought to Dateline’s attention by our social media followers. Each episode focuses on one person’s story, as told by those left behind. Listen carefully to the details, descriptions and clues offered by family, friends and investigators. Something you hear might jog a memory that could help authorities crack a case.   

You can listen to the first episode of Dateline: Missing in America season 3 here: https://link.chtbl.com/dmiast_lw

As a bonus for listeners, we’re sharing a special preview of the second season of the award-winning original series, “Rachel Maddow Presents: Ultra.” In the chart-topping second season, Rachel Maddow returns to uncover the shocking history of the ultra-right’s reach into American politics. Listen to the entire first episode now, and follow the show to get the whole series: https://link.chtbl.com/rmpust_fdlw. You can also subscribe to MSNBC Premium on Apple Podcasts for early access to every episode the Friday before it drops, and ad-free listening to all episodes of Ultra seasons one and two.