As time has passed since Alison, then the queen bee of the bunch, went missing. Spencer, Aria, Hanna and Emily have gone on with their lives, though they've grown apart. As the years go by, each girl finds herself facing a new set of challenges when anonymous text messages from "A" threaten to expose all their secrets -- both old secrets the girls were sure only Alison knew, and newer secrets developed after Alison's disappearance. Who is "A" and how does he or she know the things he or she knows? Based on the series of novels by Sara Shepard.
At 11, Barry Allen's life changed completely when his mother died in a freak accident and his innocent father was convicted of her murder. Now a crime-scene investigator, his dedication to learn the truth about his mother's death drives him to follow up on every new scientific advancement and urban legend. When his latest obsession -- a particle accelerator heralded as a world-changing invention -- causes an explosion, it creates a freak storm and Barry is struck by lightning. He awakes from a coma nine months later with the power of superspeed. When he learns that others who have gained powers use them for evil, he dedicates himself to protecting the innocent, while still trying to solve the older mystery.
When presumed-dead billionaire playboy Oliver Queen returns home to Starling City after five years stranded on a remote island in the Pacific, he hides the ways the experience has changed him. As he reconnects with those closest to him, including his sister, Thea, Oliver appears to be the same wealthy, carefree bachelor they've always known. At night, flanked by his devoted friend, Diggle, Oliver uses his secret persona -- that of a vigilante -- to right societal wrongs and transform the city to its former glory.
Life is sweet -- or at least suite -- for identical teenage twins Zack and Cody Martin after their mom, Carey, lands a job headlining at the five-star Tipton Hotel in Boston, which comes with an upper-floor suite. From that new roost, the twins turn the hotel into their playground, although the pranks are usually instigated by girl-obsessed Zack, not the more mature and intellectual Cody. When her schedule permits, the boys are "handled" by Maddie Fitzpatrick, the teenage candy-counter girl who also is the somewhat unlikely best friend of spoiled London Tipton, the daughter of the hotel's owner.
This supernatural drama, based on the series of novels by L.J. Smith, details the lives of two brothers, Damon and Stefan Salvatore, who have been living as vampires for centuries. After years of moving from from place-to-place to hide their eternal youth (and bloodthirsty condition), the brothers return to the small Virginia town, Mystic Falls, where their lives as humans ended. Damon is snarky, handsome and charming, with a propensity for evil, while Stefan tries to remain noble -- in part to atone for bad behavior in his past.
At 12 years old, Kara Zor-El escapes doom on planet Krypton to find protection on Earth with the Danver family, where she grows up in the shadow of her foster sister, Alex, and learns to hide the extraordinary powers she shares with her cousin, Superman. Now an adult living in National City and working for media mogul Cat Grant, Kara finds her days of keeping her abilities a secret are over when super-secret agency head Hank Henshaw enlists her to help protect the city's citizens from threats. Finally coming into her own, Kara must juggle her new responsibilities with her very human relationships.
When over-achieving medical resident Liv Moore attends a party that turns into a zombie feeding frenzy, she ends up joining the ranks of the living dead. Determined to pass as human despite her pale appearance and newly listless demeanor, Liv forms a plan to resist her drive to consume fresh human brains by taking a job at a coroner's office, where she can secretly snack on the brains of corpses delivered there. Soon discovering that she absorbs the memories of those she feeds on, she finds new purpose by posing as a psychic and working with a detective to help solve their murders.
Young, anti-social computer programmer Elliot works as a cybersecurity engineer during the day, but at night he is a vigilante hacker. He is recruited by the mysterious leader of an underground group of hackers to join their organization. Elliot's task? Help bring down corporate America, including the company he is paid to protect, which presents him with a moral dilemma. Although he works for a corporation, his personal beliefs make it hard to resist the urge to take down the heads of multinational companies that he believes are running -- and ruining -- the world.
"Arrow" and "The Flash" have some new superhero company in the CW's lineup with the addition of "DC's Legends of Tomorrow." After seeing what doom the future holds, time-traveling rogue Rip Hunter realizes heroes alone are not enough to prevent the impending catastrophe that threatens not only the planet, but all of time itself. Tasked with recruiting both heroes and villains, Rip brings together a ragtag team of divergent talents, which includes the likes of Sara Lance, Ray Palmer, and Heat Wave.