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.

90210 revolves around several students at the fictional West Beverly Hills High School, including new Beverly Hills residents Annie Wilson and Dixon Wilson. Their father, Harry Wilson, has returned from Kansas to his Beverly Hills childhood home with his family to care for his mother, former television and theater actress Tabitha Wilson, who has a drinking problem and clashes with his wife Debbie Wilson. Annie and Dixon struggle to adjust to their new lives while making friends and yet adhering to their parents' wishes.

A locally born and bred S.W.A.T. lieutenant is torn between loyalty to the streets and duty to his fellow officers when he's tasked to run a highly-trained unit that's the last stop for solving crimes in Los Angeles.

Agent Phil Coulson of S.H.I.E.L.D. (Strategic Homeland Intervention, Enforcement and Logistics Division) puts together a team of agents to investigate the new, the strange and the unknown around the globe, protecting the ordinary from the extraordinary.

Twenty-four-year-old Kara Zor-El, who was taken in by the Danvers family when she was 13 after being sent away from Krypton, must learn to embrace her powers after previously hiding them. The Danvers teach her to be careful with her powers, until she has to reveal them during an unexpected disaster, setting her on her journey of heroism.

A diverse group of recruits has arrived at the FBI Quantico Base for training. They are the best, the brightest and the most vetted, so it seems impossible that one of them is suspected of masterminding the biggest attack on New York City since 9/11.

When Emily Thorne moves to the Hamptons, everyone wonders about the new girl, but she knows everything about them, including what they did to her family. Years ago, they took everything from her. Now, one by one, she's going to make them pay.