DATELINE NBC To Present UNDER THE DESERT SKY On Friday, 12/15 and GOOD & EVIL On 12/16

"Under The Desert Sky" airs Friday, December 15 at 9 p.m. ET/8 p.m. CT

The murder of a Nevada teenager shakes the community to its core when the two most unlikely people make a shocking confession. Keith Morrison reports.

"Good & Evil" airs Saturday, December 16 (see below for air times according to time zones)

When a woman's body is discovered at an Anaheim trash facility, a detective makes a promise to her mother to get justice. She doesn't know that search will bring her face to face with a serial killer. Keith Morrison reports.

Due to NBC's primetime schedule, the broadcast will air at different start times and dates this weekend, according to time zones:

• Eastern: airs at 9 p.m. ET on Saturday
• Central: airs at 8 p.m. CT on Saturday
• Pacific: airs at 10 p.m. PT on Sunday
• Mountain: Will be preempted this weekend. Viewers can watch the episode 'On Demand' or online Monday, December 18.

Dateline is the longest-running series in NBC primetime history. In its 26th season, Dateline is anchored by Lester Holt and features correspondents Andrea Canning, Josh Mankiewicz, Keith Morrison and Dennis Murphy.

Airing Fridays at 9 p.m. ET/8 p.m. CT, Dateline reaches more than 20 million people every week through its broadcast, and millions more through its social media platforms. David Corvo is the senior executive producer, and Liz Cole is the executive producer. Follow Dateline on Facebook, Instagram and Twitter.

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