Nanny Carrie continues to wreck havoc when she puts both Haley and Jamie's life at risk. Lucas reunites with Lindsey for a business meeting. Meanwhile, Brooke struggles for power at "Clothes Over Bros" after Victoria continues making unexpected decisions.

Brooke is shocked to find out that Samantha is in her room with a boy named Jack. Along with that, Julian asks her to make some clothes for the movie. Peyton tries to get Mia to focus on her follow-up album. Lucas is excited when he travels to Hollywood to meet the director of the movie. Meanwhile, Nathan gets the chance for a pro-basketball try-out. Haley takes Jamie to his school's talent show and Millicent confronts Mouth about Gigi.

Peyton shares some startling news with Lucas, who discovers that Julian has been keeping another secret about the movie. While searching for runaway Sam, Brooke is forced to confront her lingering feelings over her attack. Nathan struggles with his new professional environment.

Lucas and Julian have a difficult time finding the right director for their movie. Meanwhile, a present from Lucas confuses Peyton and Brooke battles with romantic complications.

As Lucas begins to start casting for his movie, Peyton begins to put together plans for their wedding. Meanwhile, Dan gives Jamie advise when he has his first school crush; Brooke is introduced to the actress that will play her in Lucas' movie; Nathan receives exciting news; and Haley is forced to make a tough decision at work.

The parents of Tree Hill face difficult challenges: Lucas finds himself fighting to stay calm when Peyton's pregnancy faces further problems, Nathan and Haley clash over the decision to pull Jamie out of school, and Victoria returns to tempt Brooke back into the business. Meanwhile, Mouth continues to mend his relationship with Millie.

Nathan and Haley both face their dreams as he questions his ambition to play in the NBA and she receives an offer from Nick Lachey. Meanwhile, Brooke learns something that could change Sam's life forever, Jamie attends his first school dance, and Lucas and Peyton take a road trip.

The families of Tree Hill draw closer as Lucas bonds with Jamie while working on Peyton's car, Sam develops a connection with Victoria, and Brooke and Haley throw Peyton a baby shower. Meanwhile, Nathan's ambitions seem closer than ever when he learns that an NBA scout will be watching his next game.