Episode 1

An emotional thrill ride through the day-to-day chaos of the city's newest state-of-the-art trauma center and into the lives of the courageous doctors, nurses and staff who hold it all together. This is one of those days.

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.

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.

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.

Helen Webb, politician's wife, doting mother, and professional spy, has been passing on her husband's secrets to the Black Doves, the shadowy organization for whom she works. But when her lover Jason is assassinated, Helen's life is turned upside down, and only her old friend Sam Young can keep her safe. But Sam, a suave, champagne-drinking assassin, also has problems of his own. Out of the game, since his last job went wrong, he soon realizes his past is coming back to haunt him. Together, they set off on a mission that will lead them to uncover a vast, interconnected conspiracy. One that links the murky underworld of London to a looming geopolitical crisis — and leads them to question the cost of the moral choices they've made.