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District 21 of the Chicago Police Department is made up of two distinctly different groups. There are the uniformed cops who patrol the beat and go head to head with the city's street crimes. And there's the Intelligence Unit, the team that combats the city's major offenses - organized crime, drug trafficking, high profile murders and beyond. These are their stories.

Real-life mysteries. Investigative reporting. Justice. Dateline is the long-running, award winning newsmagazine bringing viewers stories ranging from compelling mysteries to powerful documentaries and in-depth investigations. Hosted by NBC News' Craig Melvin, each episode of Dateline: Secrets Uncovered incorporates the classic elements of drama and great storytelling: good guys, bad guys, conflict with the highest stakes, suspense and resolution. Hear the chilling tales directly from those most affected and involved, including investigators tasked with cracking the case and the families confronting tragedy. In every story we tell, we help the real people who lived the events share their journeys with you.

No job is more stressful, dangerous or exhilarating than those of the Firefighters, Rescue Squad and Paramedics of Chicago Firehouse 51. These are the courageous men and women who forge headfirst into danger when everyone else is running the other way and whose actions make the difference between life and death. These are their stories.

High Potential follows Morgan, a single mom with an exceptional mind, whose unconventional knack for solving crimes leads to an unusual and unstoppable partnership with a by-the-book seasoned detective.

In a ruined and toxic future, thousands live in a giant silo deep underground. After its sheriff breaks a cardinal rule and residents die mysteriously, engineer Juliette starts to uncover shocking secrets and the truth about the silo.