Starting over isn't easy, especially for small-town guy John Nolan who, after a life-altering incident, is pursuing his dream of being an LAPD officer. As the force's oldest rookie, he's met with skepticism from some higher-ups who see him as just a walking midlife crisis.

From murder and espionage to terrorism and stolen submarines, a team of special agents investigates any crime that has any connection to Navy and Marine Corps personnel, regardless of rank or position.

Dexter Morgan, a blood spatter pattern analyst for the Miami Metro Police also leads a secret life as a serial killer, hunting down criminals who have slipped through the cracks of justice.

A Los Angeles S.W.A.T. sergeant is assigned to lead a highly skilled unit in the community where he grew up. Torn between loyalty to the streets, where the cops are sometimes the enemy, and allegiance to his brothers in blue, he strategically straddles the two worlds.

PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and technology, and highlights the people involved in scientific pursuits.

After a serial killer imitates the plots of his novels, successful mystery novelist Richard "Rick" Castle receives permission from the Mayor of New York City to tag along with an NYPD homicide investigation team for research purposes.

The exploits of the Los Angeles–based Office of Special Projects (OSP), an elite division of the Naval Criminal Investigative Service that specializes in undercover assignments.

The Vampire Diaries spin-off that follows the Mikaelsons, a family of millennia-old, power-hungry vampires who want to reclaim the city they built, New Orleans, and dominate all those who have wronged them.

Perhaps their strikingly different personalities make the relationship between detective Jane Rizzoli and medical examiner Maura Isles so effective. Jane, the only female cop in Boston's homicide division, is tough, relentless and rarely lets her guard down, while the impeccably dressed Maura displays a sometimes icy temperament — she is, after all, more comfortable among the dead than the living. Together, the best friends have forged a quirky and supportive relationship; they drop the protective shield in each other's company, and combine their expertise to solve Boston's most complex cases.

A drama about the local field office that investigates criminal cases affecting military personnel in The Big Easy, a city known for its music, entertainment and decadence.

A group of heroic firefighters at Seattle Fire Station 19—from captain to newest recruit—risk their lives and hearts both in the line of duty and off the clock. These brave men and women are like family, literally and figuratively, and together they put their own lives in jeopardy as first responders to save the lives of others.

Follow the crew of the not-so-functional exploratory ship in the Earth's interstellar fleet, 400 years in the future.

FBI agent Audrey Parker arrives in the small town of Haven, Maine to solve a murder and soon discovers the town's many secrets—which also hold the key to unlocking the mysteries of her lost past.

Facing an existential threat that could bring down the Crime Lab, a brilliant team of forensic investigators must welcome back old friends and deploy new techniques to preserve and serve justice in Sin City.

Shocked to discover that her bland and unremarkable computer consultant husband is a skilled international spy, an unfulfilled suburban housewife is propelled into a life of danger and adventure when she's recruited to work alongside him to save the world as they try to revitalize their passionless marriage.

Sister Simone partners with her ex-boyfriend on a globe-spanning journey to destroy Mrs. Davis, a powerful artificial intelligence.

While searching for history's greatest treasure, Jess Valenzuela unburies her family's secret past.

Financial TV host Lee Gates and his producer Patty are put in an extreme situation when an irate investor takes over their studio.

Disgraced journalist Mikael Blomkvist investigates the disappearance of a weary patriarch's niece from 40 years ago. He is aided by the pierced, tattooed, punk computer hacker named Lisbeth Salander. As they work together in the investigation, Blomkvist and Salander uncover immense corruption beyond anything they have ever imagined.

A pair of detectives investigate stalkers in Los Angeles. Strong and focused, Lt. Beth Davis is an expert in the field of repeated harassment, driven by personal experience of being a victim. She heads the LAPD's Threat Assessment Unit, which investigates cases of stalking -- including voyeurism, cyberharassment and romantic fixation. The history of recent transfer Jack Larsen -- whose personality and questionable behavior have been an issue in the past -- may help him in his assignment to her team. Her other detectives are young but eager Ben Caldwell and deceptively intelligent Janice Lawrence. Together they try to stop situations from spinning out of control -- and to keep their personal obsessions at bay.