It's wedding day and Lucas isn't so freaked because Haley did the marriage and pregnancy before graduation instead of after. The minister drops out, but luckily Lucas can ordain Haley on his cell phone in 30 seconds.
Brooke helps Peyton get ready, which brings on the water works. Peyton makes Brooke promise that she'll take care of Lucas if anything happens to her.
Brooke then drops off a Hugo Boss tuxedo for Lucas, and Lucas has something for her - a date. He brings out Julian and Brooke is happy until she learns that Julian brought a plus one in the form of Missy.
She goes straight for Peyton to rant and rave about the whore who stole her man. The other women think she's talking about Peyton and Lucas, and when she reveals the truth about Julian's surprise visit, Peyton and Haley couldn't care less.
Nathan gets bad news on this happy day when he gets a call saying Nino was recruited by the scout and he was passed over.
Chase and Mia share some cute wedding banter about how good he looks in a suit and the possibility of them having wedding day sex.
Since Jamie was kidnapped by a crazy nanny the last time Lucas got married, Skills is extra cautious. Mouth, who was given the role of videographer so he'd have something to do, thinks Skills and Miss Lauren are preparing for some sex of their own.
It's wedding time and rather than give Lucas any advice, Nathan just asks Lucas to remember whatever he said before his wedding to Lindsey.
Nathan hits on the minister and the maid of honor calls a woman in the audience a skank.
Haley's ministering skills are far from good as she makes a bad joke about Peyton being knocked up before following Peyton's advice and using song lyrics to fill in the gaps.
Haley pulls it together by taking out an old note Lucas wrote that said "Peyton Sawyer will be Peyton Scott" back when they were kids.
They give their vows and cry as Haley pronounces them man and wife.
After the wedding, Brooke goes straight to the recording studio to recruit Nick Lachey as her date to the reception. At the reception, Lucas tries to get Julian to admit he only brought Movie Brooke to make Real Brooke jealous.
Speaking of jealousy, Brooke shows up with Nick Lachey on her arm, and Nick Lachey introduces himself using his full name.
Movie Brooke is super excited to see Nick Lachey and certain that he and the real Brooke will have wedding sex. Julian doesn't care.
Julian jokes that Nick must be the guy from the MTV reality show Laguna Beach. In a brilliant in-joke, Chase (played by Laguna Beach's Stephen Colletti) walks by and says "No, that was some other tool."
At their table, Movie Brooke talks Nick Lachey's ear off about how much she loved his brother on Dancing with the Stars.
Julian returns after hanging out with his friends, his group of guys, his band of boys, or his boy band, as it were. Oh yes, he's going there.
Cut to Julian holding a bag of ice to his bruised head. Guys in Tree Hill love punching him, and the saddest part is that Julian was a fan.
Mia gets to perform a special song she wrote just for the bride, and even though doctors said she shouldn't, Peyton forces Lucas to dance with her.
They're soon followed by all the other couples:
Nathan and Haley, Mouth and Millie, Skills and Miss Lauren, Brooke and Nick Lachey and Julian and Movie Brooke.
Haley gets an itch and pulls Nathan into the women's bathroom for ... well, you know. There's some mildly slutty behavior outside as Brooke and Julian make out with their respective dates to make each other jealous.
After Nick Lachey's role is completed, he takes off, fully aware that he was being used for the sake of jealousy. However, he points out that Julian is obviously still into Brooke.
That night, Julian gets drunk and visits Clothes Over Bros to find Brooke. Instead, he meets Victoria ... and he tells her he's in love with Brooke Davis.
When she finally comes around, Victoria will have two choices: be nicer to her daughter or never see her again.
Jamie is having problems with Skills and Miss Lauren's relatioship, but Skills talks him out of it.
Before leaving, Miss Lauren suggests she and Skills engaged in some slutty wedding sex of their own.
Equally nasty are Nick Lachey and Movie Brooke who have slutty wedding sex of their own, only she's fantasizing about Drew and he's fantasizing about real Brooke.
The evening concludes with Lucas taking Peyton back to their place, decorated in candles and flowers.
He goes outside to prep the newly renovated Comet, but inside, Peyton starts bleeding and when Lucas returns, she's unconscious.