When their best friend mysteriously vanishes, four girls believe their secrets are safe forever. But when they begin to get taunting messages from "A," the truth may be only one text away. Filled with mystery, scandal, intrigue and suspense, Pretty Little Liars is based on the best-selling book series for young adults from Alloy.

From Executive Producer Jennifer Lopez comes the new ABC Family original series The Fosters. This groundbreaking drama follows a multi-ethnic family of foster and biological kids being raised by two moms. Stef Foster, a police officer, and her partner Lena Adams, a school Vice Principal, have built a close-knit, loving family with Stef's biological son from a previous marriage and their adopted twins. Their lives are disrupted in unexpected ways when Lena meets Callie, a hardened teen with an abusive past who has spent her life in and out of foster homes. Lena and Stef warily welcome Callie into their home thinking it's just for a few weeks, until a more permanent placement can be found. Starring Teri Polo, Sherri Saum, Jake T. Austin, David Lambert, Maia Mitchell and Cierra Ramirez.

Girls switched at birth

In this hilarious new ABC Family original series, Mel (Melissa Joan Hart) is a former wild child turned local politician. When her sister ends up in prison and her brother-in-law goes on the lam, she takes in her teenaged niece and nephew. Spread too thin to manage by herself, help comes in the unlikely form of Joe (Joey Lawrence), a former commodities trader who is out of work. Desperate for a job, he moves in and becomes the family's manny.

The new ABC Family original series Chasing Life follows April, a twenty-something journalist whose life is finally coming together. She's crushing it at work, has an exciting new romance brewing, and her family is closer than ever. When she is suddenly diagnosed with cancer, her world is turned upside-down and she must learn to keep chasing life. Starring Italia Ricci, Mary Page Keller, Aisha Dee, Richard Brancatisano and Haley Ramm.

The series follows wealthy young tech entrepreneur Josh (Jonathan Sadowski), who hires a feisty young food blogger named Gabi (Emily Osment) to be his new personal chef. Desperate to keep her new job, Gabi must prove her skills to Josh and his personal aide Elliot (Rex Lee), who would prefer a celebrity chef for the job instead. The series is based upon the life of San Francisco food blogger, Gabi Moskowitz.

ABC Family's hit original series Kyle XY is a drama that follows the story of Kyle, a mysterious teenager with no family, no past, and no bellybutton. Taken in by the Trager Family, Kyle soon discovers that he has amazing abilities and astonishing intelligence. Even more shocking are the secrets of his origins that even Kyle doesn't understand.

The new ABC Family original series Twisted is a one-hour drama full of twists and turns. Danny Desai, a charismatic 16-year-old with a troubled past, returns to his hometown after spending five years in juvenile detention. Immediately branded an outcast, Danny attempts to reconnect with his two childhood best friends Jo and Lacey, who are unsure how to respond. When a fellow student is found dead in her home, Danny instantly becomes the prime suspect and town spirals into a frenzy of suspicion. Jo and Lacey must decide if their childhood friend is unforgivable, or if he's really a victim being persecuted for his own twisted secrets. Starring Avan Jogia, Denise Richards, Kylie Bunbury, Maddie Hasson, Ashton Moio , Kimberly Quinn and Sam Robards

The comedy series follows two former detective TV show starlets brought back together by a real-life mystery. Charlie Contour (Garth) is a suburban housewife and mother, while Holly Hamilton (Spelling) longs for her glory days in the 90's when she was on television. Both of their lives are disrupted when Nick (Miguel Pinzon), a witness to a crime and a "Mystery Girls" fanatic, will only speak to the infamous duo, and the former friends must reunite and put their TV crime-solving skills to the test. The series is also executive produced by Spelling and Garth.

Heaven is the sheltered adopted daughter of one of Japan's most powerful families. On the day of her arranged wedding, her vows are interrupted when the ceremony is attacked! Now, she'll discover that her past is linked to an ancient prophecy that both good and evil forces will fight to the death to control.

Fresh out of juvenile hall, Kris Furillo (Genevieve Cortese) gets her first chance at responsibility with a job on the struggling Ritter family ranch, where she befriends a horse named Wildfire. She is soon swept up in a complicated world of ruthless competition, dark secrets and love. Wildfire remains her one true friends, and their ability to achieve the impossible together creates the hope and strength to face a challenging future.