Tonight, on an all-new 2-hour Dateline at 9/8c, Kate Snow reveals new details about NXIVM and interviews former members, including the doctor who branded 17 women... | Dateline NBC

Ahead on Nightly News this Sunday... | Kate Snow

Ahead @nbcnightlynews this busy Sunday: a massive explosion blew up part of I-95, a major east coast interstate; Former President Trump prepares for his arraignment Tues; Another American is detained in Russia on drug charges; An emergency slide deploys inside a plane; and Yosemite’s waterfalls are simply stunning this year! | Kate Snow

Here's Kate Snow with a preview of tonight's NBC Nightly News with Lester Holt. Join us at 6:30 pm ET / 5:30 pm CT (check local listings). | NBC Nightly News with Tom Llamas

Tonight: An NBC News investigation into how allegations of domestic violence are handled when there's a custody dispute over kids in family court. Kate Snow spoke to a mom about the devastating loss of her daughter. Watch Kate's report coming up on NBC Nightly News with Lester Holt. | NBC Nightly News with Tom Llamas

Apolo Ohno - the most decorated American Winter Olympian in history - didn't make the first Olympic team that he tried out for. He talks to Kate Snow about what kept him going: "I needed to take the chance." Watch more from our series 'The Drink with Kate Snow' - https://nbcnews.to/32FtrhM | NBC Nightly News with Tom Llamas