Kristen's parents arrive suddenly to spend some time with them. They're staying in the house, and they drive Kristen crazy. Charlie tells her that she is like her mother, and she says she's not. Ellie tells Charlie that he's just like Gene, a dreamer, but he says he knows exactly where he is. Claudia doesn't like Griffin, so he tries to win her heart. Julia gets jealous and Griffin tells her that he misses a little sister, while Claudia develops a crush on him. Bailey gets 900 points at his SATs and his teacher offers him private lessons, flirting. He takes it again and make the same points. Charlie tells him how it was when their parents were still alive, so Bailey decides to apply for college, writing about his mom in his essay.

It's the wedding day. Charlie is not sure and asks Kristen to wait 6 more months, but she doesn't understand. He feels pressured and can't handle it. Everybody is worried about what's happening. Ellie tells Kristen to pressure Charlie, and so she tells him that is now or never. He leaves the house. Just as she is announcing to everybody that the wedding is off, he shows up. He decided to get married in order not to lose her forever. He is waiting for her in the altar, but she never shows up. He goes talk to her and she tells him that they shouldn't get married like this, afraid of what might happen in the future. She gives him the wedding ring back and leaves. Bailey tells Will that he might love Sarah and she feels the same way, so Will decides to step out of the picture letting them stay together. Julia and Justin get drunk and have sex.

Kristen's parents arrive and Charlie gets furious with Claudia for calling them. Gene keeps blaming Charlie for her condition and threats to sue him. Ellie can't interfere because she doesn't want to ruin her marriage again. They decide to take Kristen back to Chicago, and Charlie tries to stop them, but Kristen is too disturbed to decide anything. Julia and Sarah go to Dartsmouth for their interviews but they can't keep their minds away from home, so Julia realizes it's better to go to a college close to home. Callie is having problems with her father and she and Bailey drink to celebrate their independence. Bailey and Julia decide to go home to comfort Charlie and Claudia can't forgive herself for what happened.

Bailey tries to plan a perfect wedding for Charlie and Kirsten. But when his plans fail, he tells Charlie to plan his own wedding. Kirsten's parents come to town, but aren't supportive of her the engagement because of Charlie and Kirsten's previously failed marriage in the past. Claudia breaks up with Cody after she catches him cheating on her. Sarah confronts Bailey about his anger towards her. After an editor offers Julia a book deal, she quits college and moves home.