Ricky and Amy decide to run off together to escape all the drama at home with Anne's recent announcement that she's gay and Ashley's return home. But, will they decide to say 'I Do'? Meanwhile, Ben struggles with the knowledge that he may have contributed to burning down Dylan's school. And, now that Adrian is done with summer school and graduated, she's looking forward to college and Grace makes some difficult decisions about her relationships.

Amy and Ricky return home with big news. Meanwhile, Grace continues to shut out Adrian; Leo discusses the fire with Dylan\'s parents; and Anne learns how serious things are between Ashley and Toby.

Amy begins her senior year of high school and gives guidance to a new student, who's six months pregnant. Meanwhile, Ricky gets an opportunity to work for Leo full-time; Ben shares his feelings with Amy; Ricky and Amy watch a video of their wedding.

Amy and Ricky's family and friends want to host a wedding reception for them, but Amy and Ricky are hesitant to accept their offer. Meanwhile, Ashley's parents find out she ran off to culinary school overseas; and Ruben advises Ben to get a lawyer.

Ricky begins college, where he reunites with an old pal from foster care. Elsewhere, Ben's legal troubles are behind him, but he still must face Leo's wrath; Ethan takes an interest in Kathy; and George makes a promise to Kathleen.

Grace does her best to get her friends to attend church with her, but it doesn't go as she expected. Meanwhile, everyone is busy sneaking around, and it looks like Amy get caught.

Amy is upset to see what happens when Kathy starts hanging out with a bad crowd, threatening to end their friendship for good.

Amy envies Ricky's life as a college student.

Ben and Amy have a candid discussion about their relationship.

Adrian and Omar think about moving in together; Anne starts to plan Amy's wedding.

Jack remains in the hospital; Ricky discusses the wedding with George.

It's Christmas Eve and Ricky and Amy are celebrating their first holiday together as a family. Ricky talks about an old tradition he had as a kid of sneaking into a toy shop with his fellow foster care friends every Christmas Eve. Ricky, Amy & John decide to continue the tradition and sneak their way into Hedy's and are amazed by the holiday fun inside. Ethan, dressed as Santa to surprise John, brings a very pregnant Kathy with him to join in on the fun. Meanwhile, Grace stays by Jack's side at the hospital hoping for a miracle while he's still in a coma since the beating. But, everyone is in for a holiday surprise when Kathy suddenly goes into labor.

Amy and Ricky continue planning their wedding, so Amy buys her dress at a thrift store. The dress is a little worse for wear, but only Amy sees the potential to make it great.

Meanwhile, Ricky is upset about the dress and Adrian thinks the dress reflects her feelings about getting married.

Ben is in a euphoric mood, while driving Ethan to the airport he has an epiphany that Amy may not have been his first love. Omar leaves his student teaching job and proposes to Adrian. Ethan pleads with Kathy's parents to let her return home with him. Ricky confides in Dr. Fields about Amy's lack of enthusiasm towards their marriage - and Amy confides in Dr. Fields that she has other hopes and dreams. Meanwhile, Jack is restless with his injuries and enlists Grace's help. And, George meets with David to discuss Robie's paternity.

Anne is furious with George for lying about Robie's paternity and calls off Amy and Ricky's wedding, inadvertently revealing the truth about their non-marriage. Jack refuses to get help as he struggles to come to terms with everything he's been through. Nora encourages George to work things out with Anne. Meanwhile, Ethan is not happy when Kathy and Chloe become friends.

Amy and Ricky's relationship grows increasingly strained when Amy decides she wants to tour a college in New York. Leo questions Ricky about his friendship with Clementine. Jack goes to extreme lengths to protect himself with potentially devastating consequences. Adrian is not happy when Omar goes on a business trip without her, especially when she learns that Amy is on the same flight. George's need to distance himself from Anne leads him down a new career path. Meanwhile, Cierra offers to tutor Ethan in math but his pride keeps him from accepting her help.

George and Reverend Stone insist that Jack see a therapist, but it's Adrian's advice that ultimately persuades him to go. Ricky feels Amy's absence as he juggles taking care of John with his work and school responsibilities. Cathy is stunned when she learns that her ex-boyfriend wants to see their baby. Amy realizes that she doesn't want to lose Ricky. Meanwhile, Leo secures an important business account.

Ricky tries to find a way to support Amy's dream of going to Hudson University, despite everyone's reservations about their relationship. Amy worries about her future when her meeting with the college counselor doesn't go quite like she'd expected. Adrian is furious when Omar asks her to move to New York. Jack considers suing the university for failing to prevent his attack. Meanwhile, Ethan is determined to learn the real reason Don is in town.

Ethan is convinced no adult actually uses algebra, but a chance meeting with Danica McKellar helps him look at math in a different light. Amy's frantic search for her missing wedding bands leads her to Ben, who advises her to break-up with Ricky before it's too late. George and Kathleen's romantic dinner is interrupted by an uninvited guest. Meanwhile, Mrs. Stone confronts Grace about her relationship with Jack.

Amy and Ricky announce they will get married the day after Amy graduates from high school, but everyone is skeptical that the wedding will actually happen. Grace and Jack announce their engagement, but it's soon clear that Grace is having second thoughts about her decision. George and Kathleen are distracted from their secret plans when their mothers arrive for unexpected visits, but they eventually include their families in a special surprise. Meanwhile, Ethan is jealous when Kathy agrees to help Brian prepare for the spelling bee.

Amy, Adrian and Grace struggle to reconcile their pending marriages with their individual dreams. Anne begins to feel like an outsider in her own family but soon finds an unexpected ally in Kathleen. Kathy and Ethan get into a fight after Ethan questions the status of their relationship. Leo worries about Ben's obsession with Amy. Meanwhile, Chloe reconnects with someone from her past.

Adrian is devastated by Omar's decision and takes her pain out on Ricky and Jack. Ben refuses to give up on his dream of reuniting with Amy and makes a shocking confession to Alice. Ethan and Margaret have an honest conversation about his relationship with Kathy. Meanwhile, Clementine returns to town and pays Ricky a visit.

Ricky suspects that Amy is hiding something and confronts her about their future. Everyone gives Ethan some much-needed advice about his love life. Amy is furious when she learns the lengths Ben will go to in order to win her back. Jack's commitment to Grace is tested, and Henry makes an important decision about his future. Meanwhile, Chloe finally puts her past demons to rest.

High school graduation is finally here, prompting everyone to reminisce about how much their lives have changed over the past few years. Amy's relationships with Ricky and Ben weigh heavily on her mind, while Grace contemplates Jack's place in her life. Meanwhile, Adrian is ecstatic when an unexpected visitor knocks on her door.