Charles tells Cassie that he is joining the Army; Eddie solves a 60-year-old crime; the family helps Nate Ray deal with his emotional issues.

Nate Ray has trouble dealing with his emotions after returning home from Afghanistan; Cassie and Charles contemplate taking a break.

Aunt Naomie invites Cassie to spend her 18th birthday in New York City; Lizzie auditions for the school play; Jenn waits for a diagnosis on her illness.

Tay attends a singing contest hosted by R & B star Trey Songz; Jenn is stricken with a strange illness; Cassie learns that Charles has not made any real plans for the future.

The Suttons receive a letter from Nate Ray; Cassie goes to a club to get her mind off Charles; Lizzie and Andrew's relationship deepens.

Eddie and Cassie help Charles when he becomes disappointed with his new family.

Charles searches for his father with Cassie; Lizzie makes a shocking discovery when she tries to help a needy boy.

Bishop returns for revenge; Charles makes a decision about the money.

Lizzie tries to make new friends; Charles considers running away from his problems.

The police suspect foul play in the death of Charles' stepfather; Tay is rushed to the hospital after falling ill; Eddie and Jenn face financial trouble after the earthquake.

Jenn and Eddie agree to be chaperons at the prom; Charles and Sage attend the dance together.

Tay gets into trouble after he hangs out with a girl he met at the recording studio; Jenn and Cassie get involved in a protest.

Members of the Sutton household come to terms with Johnny's accident in different ways.

Eddie tries to prevent the release of the man who ordered a hit on his mother.

Eddie puts Tay in danger when he tries to stop a robbery.

Cassie becomes frustrated when Sage moves in with the Suttons.

Lund's strained relationship with Sage drives him to drink; Jenn is not happy when Mrs. Kingston is named to the clinic's board of directors; Lizzie is unhappy at her new school.

Cassie and Charles sleep together; Lizzie is recruited to attend a private school; the Suttons befriend a reverend and his family.

Thugs break into the Sutton home and hold Cassie and Charles hostage; Tay asks Ruben for help with his music and dance moves.

A car crash injures Charles; Eddie tries to protect Tay after a gang member threatens him.

Eddie must make a difficult decision after he witnesses the shooting of a gang member; Lizzie visits Boa in jail; Cassie wants to learn why Charles left home.

Stef, a dedicated police officer, is in a relationship with Lena. The two have built a close-knit family with Stef's biological son, Brandon, and adopted twins, Mariana and Jesus. When Lena meets Callie -- hardened from being in and out of foster homes -- the couple welcome her into their home, thinking it is temporary. Callie's blunt commentary about the atypical family hits a nerve with the twins, who struggle with their own identities. Then the girl discovers a secret that could land Mariana in trouble. Brandon helps Callie navigate the social scene at high school, but she skips school to meet up with an old friend. Her behavior makes Stef and Lena second-guess their decision to help her.

Brenda Hampton, creator of "7th Heaven" is behind the drama about the ways a teen pregnancy affects the lives of close-knit friends and family members. When Amy finds out she's pregnant after a fling at band camp, she faces a number of challenges. Her decisions have far-reaching effects on her family and friends, but Amy also learns that most teens in her school have issues they must deal with.

Bay Kennish is a teenager who grew up in a wealthy family with two parents and a brother. Fellow teen Daphne Vasquez, who lost her hearing at an early age, was raised by a single mother in a working-class neighborhood. One day in her high-school chemistry class, Bay discovers that her blood type doesn't match either of her parents'. Official tests confirm that Bay is not her parents' birth child. When the Kennish family meets Daphne and her mom, Regina, they realize that the girls were switched at birth. The news prompts the Kennishes to allow Regina -- who is experiencing financial difficulties -- Daphne and Daphne's grandmother to live in their guest house. The two polar-opposite families struggle to learn how to live together for the sake of the girls, who try to keep their footing in both the world they know and the new one into which they are thrown.

Think of this drama series as a kinder, gentler "Revenge of the Nerds." It centers around a college freshman, Rusty, who's determined to shed his high-school geekiness and become a frat boy. Unfortunately, his older sister, Casey, is a sorority queen who isn't thrilled about having her kid brother in her Greek system. Rusty's roommate and fellow nerd, Dale, wants nothing to do with the fraternity scene but wouldn't mind getting to know Casey better. Casey's BFF is Ashleigh, who has good looks, a sunny disposition and terrible taste in men.

Emily Kmetko's dreams of becoming an Olympic gymnast inch closer to reality when she receives a scholarship to The Rock training center in Colorado. But her natural abilities and lower economic status don't immediately make her any friends among the center's elite, who include top gymnast Payson Keeler, beautiful Kaylie Cruz, resident hottie Carter Anderson and ultracompetitive Lauren Tanner, who would like nothing more than to see Emily head back to where she came from. Amidst the backstabbing and bonding, they're teammates in name only, all in pursuit of what every gymnast competes for: a perfect routine.

When charismatic Danny Desai returns to his hometown after spending five years in juvenile detention, he sees that things are no longer as he remembered them. His mother's socialite status has plummeted due to his incarceration, and his childhood friends Jo and Lacey have grown apart and are at opposite ends of the social spectrum. Lacey is popular and dating the captain of the soccer team, while Jo struggles to put the trauma of the past behind her. Jo wants to give Danny a second chance, but when she asks for answers about the motive behind his crime, he won't -- or can't -- reveal the information. When a fellow student is found dead in her home, the town spins into a frenzy of suspicion and mystery -- with Danny as prime suspect. Jo and Lacey must decide if their childhood friend is guilty or just a victim being persecuted for his twisted secrets.

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.

After being ousted as Dillon High's football coach, Coach Eric Taylor must build a team from the ground up at East Dillon. Eric's wife, Tami, also is challenged in her role as principal at West Dillon, as the parents of students who were zoned out of the district blame her for their kids being thrust into a less-than-desirable situation at East Dillon. While dealing with issues at their respective jobs, Eric and Tami also face challenges in their family life with teenage daughter Julie.