20/20 on ID Presents: Homicide - Season 4

Star Trek: Strange New Worlds follows Captain Pike, Science Officer Spock and Number One in the decade before Captain Kirk boarded the U.S.S. Enterprise, as they explore new worlds around the galaxy.

In the criminal justice system, the people are represented by two separate, yet equally important, groups: the police, who investigate crime; and the district attorneys, who prosecute the offenders. These are their stories.

In Fire Country, seeking redemption and a shortened prison sentence, young convict Bode Donovan joins a firefighting program that returns him to his small Northern California hometown, where he and other inmates work alongside elite firefighters to extinguish massive blazes across the region.

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.