Kurz vor ihrer Hochzeit müssen Charlie und Kirsten noch den Polterabend überstehen. Charlie wird in einem Hotel von einer Frau namens Monica in Versuchung geführt. Bailey missversteht die Situation und stellt seinen Bruder zur Rede. Auch bei Kirstens Abschiedsparty vom Singledasein geht einiges schief. Claudia will ihrer zukünftigen Schwägerin helfen, macht aber alles nur noch schlimmer.
Julia will sich bei ihrem Ex-Freund Justin für ihr Verhalten entschuldigen, aber er blockt jedes Gespräch ab. Bei einem Konzert sitzen die beiden zufällig nebeneinander. Justin ist geschockt, weil er gerade seinen Vater mit einer fremden Frau gesehen hat. Aber wieder lehnt er Julias Gesprächsangebot ab. Am nächsten Abend ändert er seine Meinung.
Kristen prohibits Dudley to give Charlie a bachelor's party, so he asks Bailey if he would do it. Charlie runs into a desperate woman in the hallway of the hotel. Her husband is cheating on her. They go to the bar and have some drinks, and she asks him to sleep with her. They go up to her room and Bailey sees them. Charlie tells her that he's in love with Kristen and he won't sleep with her. Bailey is mad at him, but when he finds out what happened, he says their parents would be proud of him. Justin is mean to Julia, and they run into each other at a concert. They see Justin's father with another woman. He asks her what to do, and she asks him to forget about Griffin. Claudia's plans to make a special night for Kristen fail. Charlie is not sure about the wedding and flips a coin for it.
L'enterrement de vie de garçon dérape. Charlie, qui fait face à la tentation, doute de Kirsten.
Charlie e Kirsten decidem escrever seus votos de casamento, mas ele não consegue. Bailey faz uma festa de despedida de solteiro para Charlie em um hotel, mas nada acontece como se esperava. Charlie conforta uma mulher que flagrou a traição do marido. Enquanto isso, Claudia planeja uma noite de atividades com Kirsten, mas também nada acontece como planejado. Julia e Justin vão com relutância a um show, onde Justin faz uma descoberta surpreendente.
En una desastrosa víspera del día de su boda, Charlie debe enfrentar una fuerte tentación, al igual que serias dudas sobre Kirsten.
