Annie and Matt are robbed at gunpoint; Mary wants a tattoo; Eric is told to fire the church organist; Simon and Ruthie have the chicken pox; Lucy runs for student-body president (as does Jimmy Moon).

A tug-of-war ensues between Eric and his cantankerous parents over who will adopt a young orphan found hiding in the church.

Eric has to tell his parents that George may have to be given over to his birth father, who has resurfaced; Eric's alcoholic sister is released from rehab.

The Camden kids get a lesson in love as Mary decides to call it a quits with Wilson. Simon is obsessed with getting his first girlfriend, while Ruthie learns the do's and don'ts of kissing on the school playground. Matt receives devastating news from his girlfriend Heather, which leads him on a long journey to Philadelphia. Meanwhile, Lucy laments over being single until she accidently gets close to the school hunk.

Lucy must choose between her new boyfriend Rod and her former boyfriend Jimmy Moon after he is dumped by his old girlfriend Ashley, and wants Lucy back. While Lucy makes her decision, the rest of the Camden children are making bets to which guy Lucy will choose. Eric and Annie are at odds when they help newly married couples communicate with each other, but end up getting into a big fight themselves when discussing their burial plot arrangements within their own families. Also, a visit from Annie's father stirs up further problems in the Camden household when he arrives without Ginger after recently breaking up due to his hair piece (toupee).

Annie's father, Charles is getting married to his girlfriend Ginger. The wedding reception is supposed to be at the Camden's house and Annie is the one in charge of preparing the menu. Annie isn't enthusiastic about the wedding and the reception. On her way to the grocery store, she meets a homeless veteran and invites him home. He is the one ending up preparing the menu since he was a chef for forty years. Also, Matt and Mary are taking a little road trip, which ends up being very long when they get a flat tire. Simon is spending the day with his new girlfriend Deena. Lucy is spending the day with Jordan, the guy she can now call her boyfriend. Lastly, Ruthie is feeling lonely, so she pretends her imaginary friend Huey is back the whole day.

Mary gets her driver's license, but can't parallel park. She cried during the test because she couldn't park, so the teacher passes her anyway. Meanwhile, Simon learns that his girlfriend Deena had leukemia when she was five years old, but went away. Although, every year she has to go for a check-up to make sure the disease didn't come back which worries the both of them. Also, Ruthie calls a woman who she thinks is a psychic and asks her if Deena is going to be all right. Lastly, Eric's sister, Julie is back in Glen Oak and she has a new job and is starting a life of her own now. Eric and Matt want to help her get settled in Glen Oak, but are trying to help a little too much.

Moral outrage explodes in the community over an affair between a college president and a student at Matt's college. Simon and Ruthie go on a paper route, but some problems occur when Mr. Mallone does not want to pay the paper fee. Mrs. Hinkle tries to help Simon and Ruthie in their situation. Matt gets into a fight with some people at his school due to a disagreement of opinions with the chancellor's affair. Mary convinces Lucy to go on a date with the guy Mary SUPPOSEDLY smashed her car into.

Reverend Camden encourages his congregation and his family to trust in prayer. Lucy gets upset when people in the public thought of her as a disgusting teen mother when she takes the twins for a walk. Mary is praying that she will be able to get back together with Robbie even after what he did. Simon prays that he can see Deena soon and be on her parent's good side again even after giving her a hickey. Eric tries to locate a child who wrote an inspiring letter to him, but was left unanimous.

The striking resemblance of Robbie's new friend, Marie, to Mary raises eyebrows among discerning Camdens. Annie's invitation for her to stay for dinner makes things weirder for them. Back in Buffalo, unbeknownst to Robbie, Mary accidently bumps into her old boyfriend Wilson (guest-star Andrew Keegan) and his son Billy at the train station and makes plans to meet him for the evening. Mary is unsure on whether she should tell Robbie, but confides in her family about this. They all say that she should tell Robbie about this, but decides to ignore their advice. Also, Matt meets Robbie's ex-girlfriend, Cheryl, at the restaurant where she works. He starts to have feelings for Cheryl and tries his best to try to get her to go on a date with him. His efforts work by the end, but is having a hard time telling Robbie about his interest in his ex-girlfriend.

Mary's sudden arrival has everyone in the family wondering what happened between her and Wilson. Only Mary knows and she's not telling. Her presence delights Annie, who goes out of her way to make her daughter comfortable, even offering her the converted garage apartment. But not everyone is happy to see her. Ruthie feels that Mary owes everyone an apology for the actions that led to her moving away.

Ken Smith pays a visit to Eric and Annie to accuse Mary of seducing his son. He threatens to sell the land next to the church if Mary doesn't break up with Jack. Simon finds out from Cecilla that a girl from his dating service is pregnant. Simon turns to her to try to help her. He convinces her to drop her baby off at a hospital where the baby can go for safe keeping. Lucy wonders if Kevin has ever been with another women after she catches Ben reading her journal. When Ben picks Ruthie up from school, he see's a girl making fun of her and then she makes fun of him, which leads to the vice principal calling the police.

Eric's strange post-surgery behavior leads him to make a life-altering decision that shocks and worries Annie. The reverend considers another calling when the ministry begins to lose its appeal. His plan to abandon his religious duties is hatched after a new neighbor mistakenly calls him Mr. Camden. Fed up with everyone bringing their problems to him, Eric becomes more and more apathetic toward his family and community. Meanwhile, Lucy turns to the new associate pastor for advice when she sees Kevin and Roxanne having too much fun dancing at the pool hall. Concerned when he can't find Lucy, Kevin interrupts Simon and Cecilia's date to enlist their help.

Reverend Camden and Chandler enlist the help of Ms. Bink to raise money for the church's leaky roof, but it turns out she needs a little help of her own. Meanwhile, Ruthie's boyfriend Peter suspects that his mother's new boyfriend has some secrets to hide; and Lucy and Roxanne have a girls' night out on the town during which Lucy shares intimate details of her newlywed life. Meanwhile, the twins steal money from their parents' bedroom and from a coffee can in the kitchen.

With Annie out of town, Eric is left alone to accompany Simon on his visit to the Board of Education to discuss early graduation. During the meeting, Simon bonds with his advisor when they realize that they're both preachers' kids. Meanwhile, Lucy catches Chandler kissing a beautiful blonde woman at church and she agonizes over whether or not to tell Roxanne; Detective Michaels tricks Kevin into babysitting his six-year-old granddaughter; Peter makes a deal with the school bully in an attempt to protect Ruthie and Cecilia agrees to watch the twins which leads to a confrontation with Simon.

Eric and Annie throw a "Welcome to the Neighborhood" party for Ruthie's Muslim friend Jill Dupree and her parents, but the Duprees are hesitant to attend. Eric is shocked and disappointed when he learns that his neighborhood is not a friendly place for Muslims. Meanwhile, Cecilia's house is robbed while she and her dad attend Kevin's first Neighborhood Watch meeting; Roxanne mentors a troubled sixteen-year-old and suspects that he might be involved in the robbery, and Chandler finds himself attracted to Peter's mom Paris.

Matt returns home to tell Eric and Annie that Sarah has left him and he's dropping out of medical school. Rabbi Glass offers Matt marital advice. Meanwhile, Kevin must decide whether or not to tell a very jealous Lucy that his ex-wife is in town and they got invited to dinner with her. Martin's aunt asks Eric to step in and talk Martin into moving to New York with her and Chandler asks Peter how he would feel about Chandler marrying his mother someday. Peter thinks something is amiss when his mother goes out of town for a business trip. Ruthie keeps something from her mother.

On a temporary leave from military duty in Iraq, Martin's father pays the Camdens a visit to help his son decide whether to forgo college for a career in professional baseball. However, the visit turns sour when Martin catches his father kissing Roxanne. Meanwhile, Chandler and Paris reevaluate their relationship in the wake of her ex-husband's return, and Roxanne comes to blows with Martin's aunt over their differing views on the war in Iraq. Lastly, Vic tries to join the Marines and talks to a supervisor over the matter.

Annie's half-sister Lilly is getting married and wants their ailing father to walk her down the aisle but Annie worries that the strain might be too much for him. Meanwhile, Fred and Mrs. Bink attend premarital counseling with Chandler, but Fred's mother tries to put a stop to the wedding because she thinks Mrs. Bink is a gold digger. Lastly, Jimmy and Pat, two mentally challenged people, decide to get married after just one date and ask Chandler to perform the ceremony, but Jimmy's parents try to put a stop to it.

Lucy and Kevin celebrate their one-year wedding anniversary and contemplate whether they're ready to start a family, but things don't go off smoothly as Lucy refuses to drink champagne with Kevin during their anniversary dinner. Cecilia and Martin realize that their relationship may face a rocky future if Cecilia goes away to college. Chandler's foster son asks him to rid their house of all alcoholic beverages.

Peter lies to Ruthie about his plans for the evening when she asks him to help her baby-sit the twins. With that, Peter goes missing, but concern turns to disappointment when Eric and Vic find him drinking alcohol with his friends at the park.

Simon is reluctant to talk to Eric and Annie about his relationship with Georgia (guest star Rheagan Wallace). However, he eventually drops the bomb that they are having sex and that he's currently on academic probation for skipping classes to be with her. Meanwhile, Simon's situation helps Eric realize that the church should teach teens the importance of abstinence and he asks Lucy to lead a class on the subject.

Also, Lucy and Kevin learn the sex of their baby, and Lucy starts to question her ability to be a good mother. Matt is worried that Martin is still broken-hearted over Cecilia and will tell her about Simon's new relationship with Georgia. Lastly, Matt chips away at Ruthie's unwillingness to apologize to Martin.

Eric seeks help from Mary's (Jessica Biel, who does not appear in the episode) ex-boyfriend, Wilson (guest-star Andrew Keegan) after Charlie (guest-star Eric Panler), a new father, confesses to Eric that he has made a mistake and can't handle the responsibility of being a young dad. Meanwhile, Lucy and Kevin argue over which doctor they prefer, and Ben (guest-star Geoff Stults), who has taken an unusual interest in their pregnancy, only makes matters worse by siding with Lucy; and Ruthie has hidden intentions for wanting to hang out with Martin and his best friend Mac (guest-star Kyle Searles), which only leads to disappointment since Mac thinks of her more as a little sister.

With Thanksgiving just two weeks away, Eric and the kids notice that Annie is acting strangely, especially after she learns that Matt and Sarah (guest-star Sarah Danielle Madison) won't be able to spend the holidays in Glenoak. In fact, the majority of the family has made plans of their own and Eric worries how Annie will take the news. Mary (Jessica Biel does not appear in this episode) and Carlos (guest-star Carlos Ponce) decide to spend the holiday in Puerto Rico with Carlos' family and invite Ruthie to join them.

Meanwhile, Simon, who has something to tell his parents, but can't get up the nerve. Instead he decides to stay at school for work. Also, Martin has plans to go camping with Mac (guest-star Kyle Searles). Lastly, a strong-willed and pregnant Lucy is determined to do the cooking and decorating this year.

When new mom Lucy welcomes guests over to see the baby, Annie immediately becomes concerned, believing that Lucy doesn't fully understand the health risks of exposing a newborn to strangers. Lucy's determination to show everyone that she has parenting under control leaves Kevin to question his role as a father, especially when they're alone. Also, struggling new parents Kevin and Lucy move back into the Camden home, while Martin moves into the garage apartment.

Eric is worried that he and Annie are doing too much in helping Kevin and Lucy adjusting to parenthood as they're taking on more than they should as grandparents. Meanwhile, Martin's classmate Zoe (guest-star Katie Cassidy) intentionally falls asleep on the couch of his apartment so that she can tell everyone at school that they slept together. When Ruthie finds out about Martin's overnight guest she sees it as the perfect opportunity to blackmail him into getting her a date with her crush, Vincent (guest-star Thomas Dekker).

A non-church patron Marie enlists Eric's help in handling her elderly mother, Mrs. Wagner into getting her into a nursing home, but Eric gets a different impression when he finally meets Mrs. Wagner and sees that she doesn't need help and is still very capable. In fact, it turns out Marie may need more help than her mother as she's very unhappy with her life. But things turn out bad later on when Mrs. Wagner ends up in the emergency room due to her stress from her daughter.

Ruthie puts up a fight with Lucy while shopping as she wants to spend the day with Vincent without Annie knowing about it. Ruthie wants to go to a family dinner with Vincent. Although, it inevitably blows up in her face and leads to an interesting conversation with Annie and Lucy in the driveway.

Ben (guest-star Geoff Stults) shows up in Glen Oak to pay Kevin and his new family a visit and makes himself well at home again in the garage apartment. But Kevin is not happy to see his brother as he wanted his mom and hus

The Camdens find themselves in a series of difficult predicaments: Eric tries to avoid telling his parents, Ruth (guest-star Barbara Rush) and the Colonel (guest star Peter Graves), about Mary's divorce, and hoping that no one else in the family tells---e

After learning that he may be the birth father to Sandy’s (guest-star Haylie Duff) unborn child, Martin is left feeling very confused about what to do in his situation, while Simon can’t help but feel responsible for Martin’s dilemma because he introduced

Eric meets Sandy's father, who gives him an envelope of money intended for Sandy; and Ruthie collects soup-can labels to help her school's newspaper. Elsewhere, Simon has money troubles and his phone service gets shut off; and Martin has a heart-to-heart talk with Meredith about their future. Sandy: Haylie Duff. Meredith: Megan Henning. Edward: Michael McDonald. Beau: Costas Mandylor.

The Camdens are in the Christmas spirit in this episode. In a montage with the song ""Rocking Around the Christmas Tree"", Eric is spending time at a retirement home and dancing with the elderly patrons. Ruthie is volunteering at the hospital and gives gifts to kid patients, even her old friend Katelyn (guest star Katelyn Salmont). Lucy is working for Habitat for Humanity again. Annie, Sam, and David are talking and spending time to Sudanese students at a Catholic church. Kevin dresses up as Santa and hands out gifts at the pool hall with Savannah by his side. Kevin takes a lost dog to the kennel, but changes his mind afterwards and gives it to a deserving family.

Ruthie meets a troubled girl in detention, where a music teacher is assigned to watch the students. The girls bond over the lessons about Gershwin, as Ruthie tries to nurse her broken heart. She offers to help her new friend, who refuses any charity, but the Camdens become involved and refuse to take no for an answer.

The twins use an interesting weapon to coax the entire family into sharing their personal secrets. As everyone figures out what's going on, there are hurt feelings and confusion as they try to guess what's being hidden from them, and it turns out that Ruthie might have the biggest surprise of all.

Meanwhile, the famiy doesn't quite understand Annie's newfound fondness for Rose, and it is especially irritating for Lucy and Ruthie.

Eric takes a new approach to counseling members of the church. T-Bone stuns Ruthie by telling her what he really thinks of her selfish and obnoxious attitude, then ending their argument with a kiss.

When Ruthie and T-Bone work on a school assignment about the genocide in Darfur, they get the whole Camden family, and the community involved in the cause.

The Colonel sends Eric and Annie a gift--an RV--prompting Eric to talk Annie into taking the family on a trip to see America, and the list of traveling companions grows by the minute. In the middle of the happy madness, Lucy and Kevin make an announcement.